#Liquid Protodermis

[rahiwatching]

Liquid Protodermis seem similar to water at first glance, but it actually has some very strange and often contradictory properties when you look into it. In this video, we take a closer look at those properties and establish a theory to explain those contradictions.

This theory includes maths, material science and fluid dynamics - but also hot tubs and Rahi poop!?

Liquid Protodermis may be strange, but theories about it may prove to be even stranger…

New Bionicle Science investigations every month. What part of Bionicle lore do you want to see investigated next?

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[zarohk]

Energized protodermis?!

first of all its not silver liquid its like some other shit

[toaarcan]

Great Beings got inspiration/power from a psychic space octopus

First entity to control the MU was a psychic blob of goo

Custodians of the MU have phenomenal psychic powers.

One of the six dudes made to rule the world has mind control powers.

There's a half-dozen masks with psychic powers.

The Death Roombas can mind-control people with facehugger masks.

At least one of the facehugger masks has mental powers.

Masks that get the wrong sort of rust can mind-control animals and people.

One of the most important heroes in the setting has clairvoyant visions.

Turns out the mind-control rust is spread by slugs made from Makuta juice, that can themselves evolve to the point of being able to spread the mind-control rust at a distance.

The slugs also get later mutated into a super-brainwashing creature that literally feed on your morality.

Makuta-juice itself is also mind-control drugs.

Half the biggest characters in the setting have telepathy, mind-reading or both.

The cops have mind control guns.

This isn't even comprehensive.

There is so much psychic nonsense going on in the Matoran Universe that actually I'm willing to argue that psychic nonsense is more elemental to the MU's existence than half the actual elements.

Like, how much actual Water is in the MU? None. It's all liquid Protodermis. An actual Toa of Water encountered water for the first time in 2004 and went "What the fuck is this!?"

[muaka-safari]

May I ask, did you get around to writing that essay about ga-matoran in Metru Nui and their connection to the Great Temple? Not expecting anything! Just curious!

Oh, I think I wrote a bullet-pointed list on ga-matoran and their connection to the Great Temple, specifically looking at how it affects their concept of gender here, but I never wrote anything long-hand.

If a quick rundown is what you're looking for, follow that link. If you do enjoy long(ish), rambling essays from someone making far too extensive headcanons for fictional worlds, read on.

So. Ga-Metru. The metru of the ga, the metru specifically for the ga, that metru. Now, I could launch straight into the impact of Ga-Metru being Mata Nui-favoured... but this is my essay, so I'm gonna roll this a bit further back and delve into a possible reason of why Ga-Metru is favoured.

Because I have a personal headcanon that Ga-Metru's favoured status was very much a byproduct of the natural resources.

Look at it this way: You need to build a protodermis purification facility on Metru Nui. You've already built the forges and furnaces; now you need to be able to source the building material for these smithies. So you need somewhere with a lot of liquid protodermis readily at hand - somewhere, for example, like Ga-Metru.

And then, because you probably shouldn't put all your important masks in a place full of burny, melty fire, you store your kanohi mask here (instead of Ta-Metru) as the other major building in this budding metru.

So, ta-da, you now have your second major site in Metru Nui, and over time that becomes Ga-Metru, home to the Ga-Matoran. Second-eldest metru, not out of any holy significance, but because it provided an important resource.

Time passes, and your purification/storage facility becomes a place of spiritual importance. I mean, it makes sense. It's an old, vital building, storing items of power, and isn't the hot, noisy space of Ta-Metru, plus the act of purifying carries a kind of holiness to it.

So, the next logical train of thought: if Ga-Metru is home to the temple of your god, then - obviously - god must like this metru best.

Next, next logical train of thought: if Ga-Metru is the favoured metru, then those who live there must be Mata Nui's favoured matorans. Or, at least, they are spiritually closer to Mata Nui, living basically on the doorstep of your connection to him.

By this point, matoran have certainly been granted sentience, and with that comes all the messy irrationality of thinking for yourself. What a lot of religions like to do is recognise those singled out, spiritually, with a title. Father. Reverend. Back in the medieval era, catholic priests were called "Sir" the same way a knight was.

Regardless, the point is: you need a name or a title to recognise that Ga-Matoran are different. And (headcanon going strong here) because Matoran weren't programmed with a sense of gender, they only really have "he/him" for daily use, with "brother" as a title of respect.

So language does what it always does in these circumstances - it adapts. Except, well, the Matoran may not have a concept of gender, but the Great Beings who created them did. So, somewhere in that pesky programming and superfluous data, there's a not-memory of "sister" being an equivalent title to "brother" - they don't understand how it relates to gender, they just know it feels right. And with "sister" comes the pronouns "she/her" so suddenly you have a whole metru with their own special pronouns and titles.

And, ta-da! Matorans have now accidentally ungendered gendered pronouns.

I also think it adds an interesting sense of irony for any (head)canons that Ga-Matorans consider themselves above or better than other Matorans (because then their importance is built on a coincidence, rather than actual Mata Nui favour) but that's for another day - or for other people to take a crack at, if they'd like. (I know I've certainly seen some interesting posts about Ga-Matoran self-importance!)

I personally was just fascinated by the fact that the "female" Matoran are the "holy" Matoran, despite gender being nonexistant, and examining one possible reason for Ga-Metru gaining its favoured reputation. (What can I say? I love clawing my way into the cracks of existing world-building.) Feel free to agree, disagree, whatever, but these are my personal headcanons and I hope people enjoyed reading about them!

[0m3g45n1p3r4lph4]

Happy second Bionicle day everyone!

I've been thinking a lot about Protodermis lately - it's origins, intelligence, capabilities, and use cases. I'd like to share my notes, theories, and shouldercanons here. I've got a lot to say though, so I'm gonna segment this into parts, starting here with the origins of the material and how that may have influenced the entirety of Magnan civilization and life itself.

A Study on Protodermis, Part 1: Origins

It's been described that Energized Protodermis comes from the core of Spherus Magna. I think that fact is often glossed over - the planetary core is not molten rock like our own, but a liquid metal with seemingly unknowable properties. But a metallic core isn't so unrealistic, and at that depth the heat and pressure would melt it for sure.

No, there's a much more important detail I'd like to propose. I think that Energized Protodermis sparked life on Spherus Magna, much in the same way Water did on Earth - allowing minerals to develop into proteins, into single-cellular organisms and eventually multicellular ones. This is nearly explicitly backed in text when a leak of EP on the island of Mata Nui causes barren soil to grow with diverse biomes of plant life as perfect wild habitats for both native organic animals and now-wild Rahi. But I think this can be examined even further.

The organic beings on Spherus Magna have such high metallic content in their bodies that their bones are almost entirely metal - a bone tool for them is usable as a durable sword that can be sharpened and polished, resulting in metallic clangs when clashed. I think this is a direct result of life spawning from liquid metal instead of water, in the same way we have such immense water contents in our bodies.

This "spark of life", however it works, somehow carried into the material itself. It's entirely possible it developed sentience much slower than the rest of life on the planet, and I'll get into why as I discuss theories on its capabilities and powers, but this would also very well explain why the Great Beings never knew it to be sentient - it genuinely wasn't before the Shattering, or at least too early in that development.

TL;DR: Energized Protodermis is the living Primordial Soup of Spherus Magna

So Energized Protodermis starts life on the planet and itself begins to spread, creating what likely started as underground springs before any reached the then-vibrant surface. Considering I still think it's alive at that point, the expansion and springing of the liquid is very likely a natural growth - possibly even a search for material to consume like food. Is it possible that this is what happens when Energized Protodermis destroys what it's not destined to transform? I think it's very likely. Matter consumed and converted into near pure energy, with maybe a little of an idea of it remaining within the developing intelligence. In fact, it's also possible that the consumption of organic matter it helped spawn is the major reason it developed intelligence in the first place, like how certain multicellular organisms developed these other functions by consuming things that had certain functions and integrating them instead of fully destroying them. Then as life around EP develops, evolves, and becomes smarter, EP consumes that and begins to develop similarly.

From nothing you came, into nothing you shall become, and the nothing will become more like you were.

[tahnok-kal]

hey tahnok kal do you like grey's anatomy

As someone who doesn't have internal organs, no, I'm not really a fan. Medical dramas are not my cup of liquid protodermis.

[titanic-toa]

punk AU

((oh boy good pick~))

Now this, this was Gali going far beyond, "It's not just a phase mom!!!" and fully embracing the punk aesthetic and life style. Something happened when the Toa Mata fell into the pool of energized liquid Protodermis, something... different than the rest. She became a Toa Nuva like her "siblings" but her transformation was different. While they had been giving bulkier, more traditional looking armor, hers was sleek and jagged, a row spikes seemingly to run along every curved surface, allowing for swift swimming and dashing through ocean currents.

Though with this physical transformation, also came a mental and emotional one as well. She had always felt like a bit of an outsider being the only female among five brothers, but now that difference was amplified and so she decided to embrace it. Where she had once been a traditionalist, embracing her cultures history and studying scriptures for meditations, now she longed for change. She sought to bring their old ways of thinking into a more modern interpretation, more radical shifts.

Now did this also mean she'd spend many nights staying up, pouring over ancient carvings and old texts? Yes... yes it did. Did that mean she'd also often be seen walking through the Koros with fruit, or whatever other handheld edible she could find at the time? Also yes... She was a busy woman now, she was trying to bring about a societal change the likes of which hadn't been seen for a long, long time! She needed her energy where ever she could get it! That may just mean gaining a few extra pounds...

[tributron]

Mmm Liquid Protodermis in my tum tum 😋

bionicle soup warms the soul in trying times

[randomwriteronline]

"I can't do anything for the eyelid."

Krakua listened in polite and total silence as Jaller (slightly creaky, emphasis on velar consonants) insisted: "Nothing at all?"

"It's fused into the mask," Zaria (ejective alveolar fricatives, deeper tinnier tone, slightly scratchy) replied curtly: "I can't separate the different protodermis masses anymore, and even if I could the lid wouldn't be able to move on its own after the damage it sustained. The only viable options are to either close it completely, leave it like this, or remove the whole thing."

"A permanently open eye sounds like a nightmare..."

"And there's no saying an operation like that doesn't run the risk of fracturing the brain, either."

"That's a possibility?"

"With how brittle he is, I wouldn't be surprised." the voice shifted, sound waves changing trajectory with a sneer: "How did you even wreck yourself like that, huh? Forgot how to finish a Nova blast?"

Krakua remained perfectly still, breaths quiet, shallow.

After a long pause, Jaller spoke up: "Can the mask be removed?

"Surgically, yes. I could probably shave off a bit of the excess protodermis to make the mass a little more manageable, too. He'll need to be operated on his joints either way."

"What's your sentence on those?"

"Left knee will have to be bolted down so it doesn't risk dislocating abruptly, but it'll survive; I'll leave what to do with the right one up to him in the end, though personally I'd completely re-do it since it's not much better than the calf and ankle - those are too damaged and will need prosthetic replacements. His foot seems fine enough, I'll see if I can salvage it."

"And his other ankle? Hewkii said it was broken."

"It is, and it'll need a thorough welding job. His hip and spine too, on a smaller scale. His chest is only a bit warped, thankfully, so there shouldn't be too many problems."

"About his arm--"

"The problem's organic. Elder Racans promised they'll check on it."

"Thank you. If there's anything we can do..."

"See if you can remedy him some more braces like the one he already had until the prosthetics feel natural and at least one crutch to get around, maybe a small vehicle. He'll need as little weight on his lower half as possible for the adjustment period, and it surely won't be too bad to let him have some support later on, either."

"That's the opposite of an issue. Nuparu will love to keep himself busy for about a day designing and making all that."

A deeper hum closed the conversation with a nod, and the Toa of Iron stalked away to the other side of the room to rummage with a pile of something delicate, of carefully tempered metal and thick crystalline glass, looking for the correct tool.

Their soft tinkering painted unclear shapes in the eye of Krakua's mind as their careful sounds melted into the white noise tracing patterns on the ceiling.

"You've been awfully quiet," a creaky voice whispered at his side.

"Thinking," he replied hoarsely, peacefully.

Jaller smiled: "About what?"

"If my mask can be fixed."

"That's a question for the mask makers," Zaria interjected.

"They'll surely have the schematics for a Suletu," the Toa of Fire reassured his friend: "If not, they can easily get someone to send a print for it over."

But the De-Toa tilted his head slightly: "I want my mask fixed," he insisted: "I don't need a new one. Mine's fine. I just want it fixed."

"It will have to be melted down."

"That's fine. I just want it fixed."

"I think that can be done. It will probably have some added protodermis, though, to stabilize it."

"But most of it will still be the same?"

"Of course."

"That's fine, then."

Liquid lightly crashing against the inside of some kind of vial distracted him briefly: the Toa of Iron laid the object down before he could catch a good glimpse of it and went back to rummaging for yet some other medical utensil.

Raising his volume so he could be heard above the rockus, he did not turn as he asked: "Did you listen to what I said earlier?"

"Yes," Krakua croaked as nicely as his ghastly voice could.

"What do you want for your eye, then?"

"Like this is fine."

"Your knee?"

"I trust you."

"So I have permission to make it a prosthesis?"

"Yes, please."

Zaria turned to him briefly like he'd just spoken in an alien language: "Aren't you polite," he muttered at last, sounding flabbergasted.

Krakua coughed out a little laugh.

Jaller remained in the room as long as he could, keeping a careful eye on the few pieces of equipment slowly piling up on a small tray beside the cot - metal ingots, a sealed glass vial of some nebulous liquid, some kind of half-mask, a chisel, a pair of small scissors, a miniature blowtorch, a scalpel of sorts. He recognized most of them from his time getting a shoulder fixed up in the claustrophobic infirmary in Ta-Koro, his example being used to teach as many Matoran as possible how to treat more dire injuries.

His thoughts soured the longer his gaze lingered on the utensils. A vague sense of calm nudged them to the side: glancing downward, he found the De-Toa staring at him, buzzing faintly yet reassuringly where he laid with a sort of pleasant grimace and a quiet mischievoys request to distract him.

Acquiescing, a short sonar wave left the Arthron.

The Toa of Fire managed a little smile when his friend squirmed with a hissing giggle as the sound gently hit him.

He nodded whenZaria made a definitive gesture, telling him to get out and wait until called again - probably to fetch the safely removed Mask of Telepathy.

His hand squeezed gently the dark armored shoulder one last time: "Remember you'll need to adjust."

"Hm-hm."

"And I'll have your mask."

"Hm-hm."

"So don't disappear again. Got it?"

"Hm-hm."

A stern look: "Got it?"

The battered warrior cackled: "Got it."

Jaller patted him lightly; the next moment, he was gone.

The Fe-Toa's palm was heavier, more concrete: laid across Krakua's chestpiece it seemed to encompass it completely, carefully studying how the protodermis rose and fell beneath it.

"Take a deep breath," he instructed.

Krakua inhaled as much as he could.

"Does it hurt?"

"No."

"Good. Keep going," he ordered as he went to fetch the vial.

The younger being watched him fix the half-mask on top of it, careful not to jostle the liquid too much yet: "I don't need it," he spoke calmly, very quietly. "I can handle the pain."

He watched the rusted fingers clench a little harder around the glass.

The words came out of Zaria in a hiss: "You can't."

No further arguments were had.

It took a couple of tries, but at last the muzzle fit perfectly over the Suletu's mouth.

The anesthetic smelled like something far too clean, scrubbed dry of any hint of life. Krakua shut the one eye that could still be properly shut and breathed the disgusting antiseptic scent in as long and as deep as he could, just like he was told to do, while a palm pressed down on his forehead.

Slowly, very slowly, the odor subsided.

He startled awake when he realized the weight spread on his face was gone as well. His throat rumbled and sputtered like an engine revved up one too many times, hurriedly calling out for Trinuma: no other part of his body understood his intentions, remaining limp and unresponsive inside his frozen body, and so all that came out of him was the low monotone wail of a calculator incurring into an impossible error.

An orange shape entered his field of vision: "Stay calm," (ejective alveolar fricatives, deeper tinnier tone, slightly scratchy) "Stay calm, we're done. Deep breaths."

"Done?" Krakua repeated - borrowing Zaria's voice when his own failed him again.

"Done. The operation's done. It went well. Now breathe."

His chest moved easier now. His back had lost the strange tingle he'd been feeling long enough to forget about, noticing it again only now that it had disappeared. His lower half felt like bits and pieces of a whole: entire body parts he knew had to be there left terrifyingly large gaps in his tactile reception.

His body felt more his with each breath, returning inhabitable little by little. It took a few long attempts, but his neck cleared, and opened, and words began to fill his mouth once more.

"How are you feeling?" the Fe-Toa inquired.

"Weird," he wheezed raucously, a little pained: "Drowsy."

"That's normal," his surgeon reassured him. "Your body is trying to recognize the prosthetics. Try to sleep it off, I'll wake you when Racans arrives to see what to do for your arm."

"My mask?"

Steps moving away: "Jaller's got it."

"Ah... Ah. Right."

He focused on the white noise - conversations out of the door, just far enough for the words to become indistinguishable, blooming into large pixelated patterns of static against the ceiling.

Another part of his body felt a little more familiar.

A whine left him.

Zaria turned back to him: "What now?"

"Wanted to ask," Krakua groaned through his tiredness. "More discreet... With a Suletu..."

He did not miss the scratching sound of tightening joints: "Questions about your operation?" the deep tinny voice hissed, warning him witho uttering any threat: "Or about Toa Zaria?"

The De-Toa craned his neck enough to look at the other.

His interlocutor showed him his back as he fancied himself busy putting his tools back in their rightful place.

"You thought of two things, when I said... I could handle it. The pain."

The creak of glass under pressure: "Be very quick."

"For the second - does it always feel, that bad?"

"Yes."

A soft hum.

Zaria's eye glowered from behind his shoulder: "And for the first?"

"Does it ever get better?"

Silence followed.

His head felt so terribly heavy. He didn't want to sleep.

It would have been so easy, if he'd had his mask. Maybe he should have left it forever stuck to his skull. It hurt horribly, and it didn't work as well as before, but he would have been able to use it now.

His body quivered. He was so tired. He didn't want to sleep.

The white noise on the ceiling curled around him comfortably, locking him in some sort of soothing hold.

Rusted hands rested on his knees.

"You'll need these checked every year," Zaria mumbled: "I'll be waiting for you. And hopefully, I'll... I'll have a good enough answer for you, one of these times."

His gaze met Krakua's.

He got back a comforted smile.

[rahiwatching]

Given Rahi are made by Makuta using viruses and liquid protodermis rather than reproducing themselves, the Makuta must have set up some sort of automated process to create them once they had settled on a design right? They needed to make A LOT of Rahi to fill the MU with, and ones that were prey animals must’ve had quite a high rate of replacement required. I can’t imagine a Makuta just sitting there creating endless schools of Ruki fish all day by hand, so some sort of automated function spread out across the MU makes sense to me for established species.

Basically, what I’m saying is, the MU was probably filled with these:

[sepublic]

Aside from the meta reasons of Fire being the most glorified element by Lego in Bionicle, there’s a lot of thematic brilliance in having someone who thought he was a Ta-Matoran become the Toa of Light; Given the associations of Light with Fire in the past, how our ancestors for the first time were able to make light their own through the use of fire, in order to combat the uncertainty of the night.

Other elements that would also fit this transition would be Ice or Water, I feel; Both are reflective, Takanuva even pretended to be Ice in canon for the shared colors; Although Water has that additional connotation of purification, which makes for a good foil against Shadow and its infected masks. Tellingly, Makuta has a rusted appearance in the movies that is purified when he takes a bath in the liquid of energized protodermis, not to mention Takanuva’s light.

And for irony, Earth would be fun as well; Given the Onu-Matoran are linked so heavily to the dark caverns underground, closer to Makuta’s lair than anyone else, and where his power is strongest. TBH, it’s a missed opportunity that Earth’s connections to Shadow and the Makuta weren’t explored a lot more; with Onu-Matoran canonically preferring darker places like a Kraata might. Esp in regards to a character like Whenua for example, who lurks in dark caverns a lot, AND is fascinated with Rahi; That’s two-for-two with the Makuta’s motifs! If Ahkmou were an Onu-Matoran... We do sorta have this with Whenua’s role in The Darkness Below at least, being up against Krahka, as well as Onua’s joke to Gorast about him and Makuta sharing a fondness for the color black.

[ba-matorangirl]

I’ve Been Reading Bionicle Book 5, And...

"A stone rat scurried across the tunnel floor. It paused for an instant at the sight of the Toa, then darted around them and right into the pool. There was a horrible hissing sound. The small creature struggled to free itself from the liquid, but the protodermis clung to it like a second skin. Then the rat spasmed, smoke rising from its body. Before the horrified eyes of the Toa, the small creature dissolved, leaving no trace it had ever been there.

“The secret of energized protodermis,” Nuju said quietly. “What it doesn’t transform... it destroys.”

That didn’t just happen. I didn’t just read that... did I?

[caustic-krana]

Speaking of protodermis, trying to rationalize how it works is mindboggling. So you got "liquid protodermis" which is what makes up the sea in the matoran universe and is more or less its water. It also has a "solid" state which has stone-like or sometimes metal-like qualities. And when you melt that down, it enters a liquid state known as "molten protoder- wait a second.

[venoblade-bionicles]

Do you guys think the liquid protodermis that existed in the GSR was supposed to act as a coolant?

[legend-as-old-as-time]

Headcanon that most Ga-matoran in Ga-Metru avoided disturbing any of the canals whenever the Great Temple underwent maintenance. No swimming, no transports if it was possible, etc.

Almost none of the liquid protodermis in the canals went into the Great Temple and were purified elsewhere. But it was thought to be bad luck, because any disturbance maybe could resonate into the building and damage something. Or make Mata Nui unhappy, because he was watching the proceedings and could feel disturbances.

What kind of superstitions would Matoran have?

[tharrb]

Metru headcanon part 1

metru nui, despite being the capital of the universe, only has metros for 6 of the matoran tribes. What about the others? So my headcanon is that in the same dome as metru nui is several islands contains the metru for the other matoran tribes. Note that I will be including my own fanon tribes as well.

First off, there’s no Av-metru, as Av-matoran we’re not native to metru nui prior to the time slip

Vo-metru

Located in the center of an island to the southeast of the main land, this small metru comprises of a single massive factor that dominates . The matoran here create batteries which power the many vehicals and other devices throughout the city. Very little in this metru exist that dose not contribute the factory’s production. As such, the Vo-matoran tend to be hyper focused on their job, resulting in less vahki arrest than most other metrus.

Fa-metru

Located on the northern most island on the city, this metru was home to the transit hub. Long before the chutes were invented, the primary form of transportation was through the transit system, a series of magnet trains that run through out the city. The metru has rails connecting to all other metrus. Unfortunately, the transit system fell out of favor when chutes were created, which were both faster and did not require an established schedule to operated. This had lead to a bitter rivalry between the Fa-matoran and the Le-matoran. However, the transit system still saw use for civilian transport do to having less risk involved than chutes. This was one of the three metrus destroyed in the darkest day, which led to the transit system being shut down for good.

Su-metru

Located in the north part of the dome, in between Fa-metru and the mainland, this metru could be describe as one giant smoke stack. Located on a volcano structure, this metru exist to release and and purify the smoke that comes from metru nuis heating system. As it is the Su-matoran job to monitor and maintain the tubes of molten liquid protodermis that heat the city, there are tunnels below the sea that connect the metru to the rest of metru nui’s underground. The Su-matoran tend to blend into the wood work as far as the other matoran are concerned, given how they work under ground blow even the archives, with many being startled seeing one on the job.

Ba-metru

Located on the far northwestern end of the dome, this is a mountainus region with the buildings being at the very top. The air pressure their constantly fluctuates, resulting in constantly changing weather patterns. This combined with the steep climb makes it rather isolated amounts the metrus, and the ba-matoran rarely have visitors. The ba-matoran attempted to foresee the future and other truth about the universe. But unlike ko-metru which attempts to do so by studying the stars, they spend much of their days meditating.

De-metru

Located off the southwestern coast of the mainland, this snowy plains region has a graceful stillness about it. It is also home to the central tower for metru nuis information network. Each metru has its own tower that broad cast digital information from the metru to the central tower, which is then transmitted the other metrus. These towers also allow matoran to communicate across long distances. The De-matoran not only ensure that the towers are operating properly and information is flowing, but also report new and events through information network. The De-matoran, while generally accepted by the other matoran, prefer to stay in their own metru and avoid the loudness of the city.

Fe-metru

Located to the east of the mainland, this metru is large in size.and is home to both mining tunnels and smelting facilities. The Fe-matoran run furnaces but unlike the Ta-matoran, they specialize exclusively in one thing: protosteel. Fe-metru is the only source of prosteel in the dome, where it is mined, purified, and forged so that it can be used in the construction of the city. The Fe-matoran share a similar treatment as the Ta-matoran from the other tribes, being regarded as smelt heads and firespiters. The two tribes often clash over who is more important to metru nui. This was one of the three metrus destroyed during the darkest day.

Bo-metru

Located to the west of the mainland, this metru is an oasis in the middle of a desert. The metru acts as one gigantic garden. The Bo-matoran have the responsibility of not only preserving the metru nuis botanical heritage, but also for producing food for the rest of the city. The Bo-matoran are regarded as being hippies by the rest of the matoran, but few would doubt their importance to the city.

Ce-metru

Located off the northeast coast of the mainland, almost touching Ga-metru, this metru has a calming presence. It is dominated by three lakes in the middle of the island. The metru serves as a place to calm the nerves of the matoran working in the city during their mandatory break period, almost like a resort of sorts. The Ce-matoran are a warm and welcoming sort to their guest(provided they’re not driven insane by the stress of difficult matoran). Following the matoran civil war,the Ce-matoran also act as mediators to settle any disputes between metrus.