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7 Walstad Method Myths Debunked: What Dianna Walstad Really Says You Should Do In Your Planted Tank!
Best Plants For Walstad Tanks - https://www.youtube.com/watch?v=FJ7BDAKkhRs Best Floating Plants - https://www.youtube.com/watch?v=vKTNC8LLD5I Worst Plants For Walstad Tanks - https://www.youtube.com/watch?v=7ftTLlRmW80
SOURCES
Book Excerpt - https://dianawalstad.com/wp-content/uploads/2023/05/nitrogen-uptake-2023.pdf Nitrate Update 1 - https://link.springer.com/article/10.1007/BF00387462 Nitrate Update 2 - https://www.sciencedirect.com/science/article/abs/pii/S221471442200873X Nitrate Update 3 - https://pubmed.ncbi.nlm.nih.gov/23033643/ Ammonia to Ammonium converter - https://extension.rwfm.tamu.edu/wp-content/uploads/sites/8/2013/09/Ammonia-in-Aquatic-Systems1.pdf Plants Use Ammonia - https://www.researchgate.net/publication/366944461_Reducing_ammonia_levels_in_catfish_cultivation_water_using_several_aquatic_plants Fritz User Guide For Fritz Zyme 7- https://fritzaquatics.com/resources/articles/fritzzyme-user-guide-fw
BRAND MEDIA KIT - https://glassboxdiaries.com/brands
7 Walstad Method Myths Debunked: What Dianna Walstad Really Says You Should Do In Your Planted Tank!
In today’s video, I’m tackling some of the most common myths about Walstad Method aquariums. These myths are widespread, and I believe content creators (myself included) play a role in perpetuating them through our titles and content. However, there’s a lot more nuance to the method than these myths suggest.
Throughout the video, I’ll share footage from my own aquariums—some that follow the Walstad Method and others that don’t.
Here’s what we’ll cover: 1️⃣ Do Walstad tanks need filters? While many believe filters aren’t used in Walstad tanks, the truth is more nuanced. Even Dianna Walstad herself uses filters in some setups. I’ll explore her recommendations and why beginners might benefit from starting with a filter—or at least adding water flow with a USB pump.
2️⃣ Are plants the only filters? Plants are amazing at absorbing harmful compounds like ammonium, nitrite, and nitrate, but they’re not the only filtration mechanism. Beneficial bacteria and archaea in the substrate play a massive role too, often working in tandem with plants.
3️⃣ Do Walstad tanks eliminate water changes? While water changes can be minimized, they’re not always unnecessary—especially in new tanks. I’ll explain why water changes might still be needed and how to manage Total Dissolved Solids (TDS) effectively without frequent water changes.
4️⃣ Do Walstad tanks avoid fertilizers? It’s possible to avoid fertilizers in a Walstad tank, but it can be challenging. I share my personal experience dealing with potassium deficiencies and some natural ways to boost essential nutrients like potassium and iron.
5️⃣ Is the research in Walstad’s book outdated? Some claim the research is old, but the latest edition of The Ecology of the Planted Aquarium (2023) includes updated studies and findings. If you’re interested in Walstad tanks, make sure to reference the newest edition.
6️⃣ Can you instantly stock a Walstad tank? Rushing to add fish can be risky, especially for beginners. I’ll explain why patience is key to allowing plants, bacteria, and archaea to establish before adding livestock.
If you’re curious about the Walstad Method or just want to improve your planted tank setup, this video is for you!
Don’t forget to check the description for links to studies, resources, and additional information mentioned in the video.
👉 Leave a comment with your thoughts or questions—I’d love to hear from you! 👍 Like and subscribe for more content on aquariums and planted tank tips!
Thanks for watching, and have a great day! 🌿🐟
TIMESTAMPS
00:00 - Intro 00:05 - Walstad Method Myths 00:23 - Walstad Tanks Don’t Use Filters 01:42 - Plants Are The Filter 05:59 - Walstad Tanks Don’t Need Water Changes 07:25 - Walstad Tanks Have Problems With TDS Build Up 09:42 - You Don’t Use Fertilizers In Walstad Tanks 12:07 - The Research Is Out Of Date 13:16 - Instantly Stocking Walstad Method Tanks
Some of the links in this video description may be affiliate links meaning I earn a small commission from any purchases made.
#aquarium#fish tank#planted tank#planted aquarium#aquarium plants#aquatic plants#walstad#walstad method#dirted tanks#dirted aquarium#Youtube
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yeah... yeah
#art tag#league of legends#arcane#sevika#sevika arcane#ada wong#resident evil#.... dont look at me#her this entire season was so. shes so fine#at the beginning i kinda hated her hair in the trailer but the VERY MOMENTTT i saw miss sevika move i was like okay wait it's growing on me#AND THE BLACK TANK TOP MREEEEOOOWOWOOW#damn act 3 they treated the piltover zaun conflict so unseriously and it's kinda stupid they ran my girl through the dirt#sigh. SIGHHHH#on a final note i know she probably wouldn't wear something like this never in like a million years#it does not matter. my worlds have collided and she came to me in a dream#for now... for now sevika dons the ada wong og re4 dress. take it as you will
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Me trying to interact with fish: 😁🥹😍😭🤪
The fish: .... But is there food?
#betta#bettablr#fish#fishblr#betta fish#petblr#FYI that is just DIRT on his tank glass#from plants n water changes#its not gonna bother him#he likes it ok#he likes his nasty gross thriving fucking planted tank ok#amd its the backside so who cares#it probably blocks from reflection#i tell myself#nameless#anyway#hes best fish 🥹🥹
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#invader zim#dib membrane#palindrome#palindrome zim#zadr#im going to be drawing alot of unusual zadr bc of the game#palindrome will get his kisses after dib is done scraping dirt from his tank
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look at my fish tank boy
+ bonus video of bugbear and ruffles hogging attention (taken before the almond leaves went in which is why its so bright LMAO)
#mmy fish smile#fish#fishblr#sadly all my fish love being in the dark at the back#i have kuhli loaches too but they normally dont show up#usually i see them kicking up dirt from swimming away over than the loaches themselves#fish tank stuff#squidslug speaks#i wanted ot poast them for the people now im finally happy with how the tank looks
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my snon i love youuuu
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Going CRAZY on the carrot
#↑ This is my snail tank. There are little isopods too because they are good at existing next to each other.#Snails are really good to keep as pets. You can go outside and find them and they don't need much.#You can have a really elaborate beautiful terrarium with fresh growing plants‚ or you can have a tank with moss and boiled leaves‚#And either way snails will be like “Oh fuck yesssssss dirt and leaves just for me”#Oh and some kind of calcium source. But that's it.
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I've been meaning to give Little Miss Sun Shine a makeover, so since I decided to give WHM a go on her today, have a beautiful bean. <3
#Lil Miss Sun Shine#That hairstyle looks so good on her#and the weights make the back braid flop around when she runs#it's so cute#;v; <3#Now time to go tackle my healer anxiety into the dirt#If I can learn to tank#I can learn to heal
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I FOUND MY WORM SIF AND I DREW THEM DIGITALLY LOOK AT HIM

#WORM SIF#so heres a rundown of whats going on in the tank!#in the fishbowl of course is worm sif with some dirt and a rock to sit on#he also has glow in the dark star stickers and the flowers are dandelions because theyre siffrins favorite flower#hey look i actually included the art in the post this time💀#i drew this a couple months ago just on a piece of paper but it was messy and i never actually did anything with it until now#isat#in stars and time#isat siffrin#siffrin#stars sketches#my art
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portrait practice with SILO characters rahhhh (for each i tried to work from reference as much as i could and then switched to tracing so that they Looked Right.)
#juliette nichols did unthinkable things to my mind and body (reference to bigtop burger: kid)#you know the post about scifi being sweaty women in tank tops covered in dirt. yeah#the silo writers: ok so theres an antagonist who wears all black. and is the only one in universe to do so. and he has big beautiful eyes#they visited the 'My Favorite Character factory' and stole the secret recipe. i feel so catered to#the main character is a grimy autistic engineer with tattoos (for the first 2 episodes. then she gets a new job 😔) and i love her a lot!!!#its a mystery scifi. it's not what i usually watch but the worldbuilding was really good#you could tell the set and costume design had a lot of love put into them#and the plot was intriguing to follow#do i recommend silo?#yes. its a good show :)#these are portrait practices from august. faces are still currently my least favorite thing to draw but they are slightly easier now#silo#silo apple tv#art#my art#silo fanart
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The Orange Disease affects more than cats, I promise
(Genuine mean comments about my pet won't be tolerated. I know snakes aren't super popular with some people but please do not insult or threaten my baby)
#ms paint#artists on tumblr#art#digital art#my art#sillyposting#silly comic#corn snake#snakeblr#i had to clean out all the old bedding and wipe down the walls of his tank with the log in my lap#he only came out when i dumped out the new bedding#then he put himself back in his tank and buried himself in the new dirt#hes ridiculous#food for the fish
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her name is milkshake. go girl give us nothing 🤗
#isopod#roly poly#woodlouse#woodlice#magic potion#armadillidium vulgare#would you believe this is the second time she did this in a row which is how i even got to film her in the first place 🤣#god i love isopods. they are SO DRAMATIC when they fall over no matter how briefly#anyway hi hello isopod lovers i keep isopods i have porcellio scaber and armadillidium vulgare (magic potion + gem mix + wildtype)#i've kept them for some months now but only recently have felt somewhat confident in my husbandry to talk about it#i was kind of negative towards them at the start not going to lie i never really liked 'bugs' all my life#but those little dirt shrimp have changed my way of thinking and for the better. they are just. they're just so nice#milkshake here is (i think) the first a. vulgare mother in their current tank and i look forward to seeing how her babbies grow
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I really admire Primi Dempsey's smile lines and zygomatic bone !
I also like his teeth.
I didn't get good screenies for his teeth this time, but that's okay 💔
Ultimis crew's nasolabial folds are cute too, and Richtofen's face is well sculpted, but idk the only ones I could point out in Primis were Dempsey's and Takeo's.
So nice! So well-sculpted! I love characters with prominent zygomatic bones.
I like how his face flushes too 🐿 It is very cute.
His teeth.. are so perfect. They should be crooked or misaligned!
Richtofens are narrow and evocative of a rabbit.
His are just so normal and dull... besides the slight natural discoloring.
Anyways, his body is very well crafted! I like him!
Magnificent specimen
#cod zombies#tank dempsey#primis dempsey#ultimis richtofen#ultimis crew#primis crew#call of duty zombies#just thinking#rolling around in the dirt right now thinking about tank dempseys cheek bones#horrorfevers#codz#edward richtofen
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Them again 🫶
#minecraft story mode#mcsm radar#mcsm jesse#mcsm lukas#mcsm nell#mcsm petra#mcsm aiden#kind of haha#he’s a scribbled doodle that Petra did in high school that Lukas keeps tucked in the back of his journal#bakery au#Nell is making brownies. because uh. reasons :)#I figured I should draw Petra in something other than a tank top because the story is set in fall/winter#like yeah she’s traveling but also. she needs warmer clothes too#also red hairclip Jesse…..I think she’s so neat and cool#she was also supposed to be covered in dirt but my silly self forgot to add it 😔#my art
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Destroyed Russian T-72B main battle tank, Russia, February 22, 2025. Source: ukr.warspotting.net
#Ukraine#russian invasion#T-72#main battle tank#dirt road#winter#military history#tree#defense of freedom#defense of europe
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She’s come out to say hello while I’m doing some tank cleaning.
#bug#bugs#insect#insects#millipede#millipedes#avatar#the tank doesn’t look great cause I’m redoing it but by bit#because there’s worms in the dirt I don’t want to disturb but the soils pretty low
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