r/PlantedTank Jul 20 '26

Question Biofilm

I’ve never seen biofilm this intense. It’s only been three days of this tank set up and it’s off the charts. I know it’s supposed to be a good sign but like…do I need to intervene in some way.

Upvotes

102 comments sorted by

u/BearTheFerret Jul 24 '26

Much jealousy lol my shrimpies and snails and otos would be in heaven

u/InappropriatePea Jul 24 '26

If only I could share the goop with all my new friends

u/EnvironmentalYam7860 Jul 21 '26

mine was this bad, it took almost two weeks to go away with no shrimp or snails

u/darkfriendswbens Jul 21 '26

Part of the cycle, don't feel like its a waste, the conditions needed for all that bacterial growth aren't the same as the conditions needed for invertebrates and fish. The "ugly tank" phase will pass, just be sure to dose your water with some ammonia or fish food to help the filter cycle.

u/Curious-Move-1313 Jul 21 '26

I had that thick layer in one of my new aquariums, and I was contemplating what to do, it would be gone before I put any shrimps in anyway, so I could siphon it out.

But then I kinda felt it would be a shame letting all that juicy gunk go to waste, I mean, after having shrimps for so long all I could see was a wonderful delicious buffet wasting away.

So, I did what any crazy person would do, I tried to catch most of it with a tiny brush and then I fed it to my other aquariums in chunks😂
It might have been easier to siphon it, and then take the chunks from the bucket🤭

Shrimps were happy, I was quite pleased with my solution at the time, I felt the shrimps should thank me😂

I think it’s fine either way, I sometimes remove it if it’s a lot and takes its time to go away, especially if it covers the plants too much. Haven’t had any plants complaining, but, yeah, if it’s too much and I don’t have inhabitants that it’s useful for I sometimes remove it.

u/7days2pie Jul 21 '26

Let nature do its thing

u/not_unabomber Jul 21 '26

I thought it was a giant planaria

u/InappropriatePea Jul 21 '26

I’d have a world record on my hands for sure if it was 🤣

u/Pentium_II Jul 21 '26

My otos went wild for this stuff . I don't know what it is (fungal growth?) but its normal on new tanks. There was a thin white surface on every piece of organic matter in my tank (20 gal), 4 otos had it cleaned up within a week, and had big round bellies by the time the tank was clean

u/benbarian Jul 21 '26

Echtoplasm! It's about to start flying around and dripping green slime everywhere!

u/Dwashelle Jul 21 '26

That is some serious gloop glorp you got there

u/frogfeen Jul 21 '26

Looks so cool! Neat share

u/Small_Award3877 Jul 21 '26

Mine got very thick like this, I honestly just siphoned it off and it came off in big pieces. But my snails loved to snack on it

u/UltraGamerZ211 Jul 21 '26

Shrimp buffet

u/the_colour_guy_ Jul 21 '26

Spiderwood is notorious for this. It’s harmless and will fall off and be processed by the filter or some sacrificial
Snails if you’re still cycling.

u/tuckman496 Jul 21 '26

Brother!

u/something86 Jul 21 '26

It will clean itself. Go micro bloom on micro bloom fights.

u/mephistopheleswaifu Jul 21 '26

This is officially my favorite thread 🦐🫧🪸

u/Howdy132 Jul 20 '26

how many noms would a shrimpy shrimp nom to nom nom all the goo?

u/InappropriatePea Jul 21 '26

Absolute poetry

u/WorriedPerogi Jul 20 '26

single amano one bite

u/neofox299 Jul 21 '26

Amanos are beasts!!! One fell into my sump and lived there for years until being discovered

u/NBMycologist Jul 20 '26

It's up to you. You can clean it, or once your water is in balance, fish, shrimp, and snails will love to eat it.

u/neurotisch Jul 20 '26

use roomba

u/InappropriatePea Jul 21 '26

Ramshorn Snails specifically? Or just all snails = roomba?

u/crittercentral Jul 21 '26

nerite if you don’t want it to be a lifelong commitment (they don’t breed in freshwater like other snails)

u/DifferentContext7912 Jul 21 '26

Snail=Roomba

Bladder and ramshorn are the best for sure

u/TheBlack_Swordsman Jul 20 '26

Go to 7-11, get a slurpee straw and suck it all right up. Yum.

u/herbertwillyworth Jul 20 '26

A snail wrote this

u/InappropriatePea Jul 20 '26

This comment wins the day.

u/Airgroovin272 Jul 20 '26

Your logs have to stay protected. Don't want any baby logs running around now do we

u/InappropriatePea Jul 20 '26 edited Jul 21 '26

My brain ran amok with this lore. Baby trees = more trees = yay! 🌳🌴🌲

Dead tree reproduction? Zombie trees? Baby zombie trees? You’re right we don’t want baby logs running around.

u/questforflavour Jul 20 '26

I thought this was fungus!

u/InappropriatePea Jul 20 '26

Yours looks so much more subtle. This I could ignore. But my tank is right behind my desk in my classroom. Parents come in to drop their kids off and they’re like…

https://giphy.com/gifs/pPhyAv5t9V8djyRFJH

u/ItsMyGayThrowaway Jul 20 '26

If they were shrimp they'd understand

u/Omen46 Jul 20 '26

Nope I had a great biofilm jungle in mine when I started. 3 snails and about 10 shrimp later it was all gone. Never to return

u/InappropriatePea Jul 20 '26

But I need to finish the cycle before adding them yes? So would it be advisable to just vacuum this up until I can get them in there?

u/BlackfishBlues Jul 21 '26

Ramshorns are probably fine imo. They are used to bad water conditions and are very hardy. They’ll help the cycling along too.

u/Marguerite_Moonstone Jul 21 '26

I had snail hitchhikers before it was cycled and they did fine, snails seem nearly indestructible if you wanted to get some ahead of the rest of the population. Might be helpful nitrogen contributors and unlikely to make enough to mess up anything. But I am no expert, I own a single planted tank that was a result of pandemic boredom. Just be sure and do your snail homework before choosing; my pest snails are a nuisance and whoever says only roaches will survive the apocalypse has deeply underestimated aquatic snails.

TLDR; just go get the snails

u/InappropriatePea Jul 21 '26

I love the image of reaching the end of time and it’s just roaches and ramshorn snails pittering about.

u/Omen46 Jul 21 '26

Snails do last forever I still have my nerites snails from my first tank they have seen species come and go tanks fall and be re built it’s insane

u/TheyCallMe_Billy Jul 21 '26

Roaches using the ramshorn as aquatic vehicles until they evotto replace us

u/Omen46 Jul 20 '26

Well yes it needs to cycle but this is sort of that process leave it

u/ItsMyGayThrowaway Jul 20 '26

Leave it to mature, you need strong algae growth for sustainable food sources 👍 you're doing amazing so far, just leave it be and enjoy the slow progress 🫶

u/InappropriatePea Jul 21 '26

I’m doing amazing? ✨☺️✨ yay

https://giphy.com/gifs/TjGFDxbbZRYjv9vpCL

u/ijtjrt4it94j54kofdff Jul 20 '26

I like it. It's like some eldritch horror thing.

u/ayuisjustagirl Jul 20 '26

Don’t remove it, save it for your future shrimps/snails.

u/InappropriatePea Jul 20 '26

If I just leave it for four weeks, will it not take over everything? Will it not GROW LEGS AND TRY RO ASSIMILATE!?

u/Marguerite_Moonstone Jul 21 '26

u/InappropriatePea Jul 21 '26

Listen, I’m only somewhat knowledgeable on Star Trek things so I needed to google this to understand the reference. I get it now but here’s something else I learned…

The AI has also been trained not to trust the slime…

u/Marguerite_Moonstone Jul 21 '26

I was making a TNG skin of evil (s1e23) reference, but I am genuinely curious what the rest of that list was lol

u/ayuisjustagirl Jul 20 '26

HAHA noo it’ll be fine, if it starts to change color it could be developing as an algae, but for now leave that delicious goop!!

u/AFD_FROSTY Jul 20 '26

If it evolves, call the government… or your god. Keep strapped with some industrial fungicide to be safe.
(In all seriousness it’ll likely dissipate in that time but if it doesn’t it’ll be a nice snack for the new inhabitants)

u/InappropriatePea Jul 21 '26

‘Or your god’

Meanwhile my god

https://giphy.com/gifs/NWqFfIIxiJyAE

u/-NickG Jul 20 '26

Yum

u/InappropriatePea Jul 20 '26

Another shrimp person!

u/ConfidentFrosting474 Jul 20 '26

biofilm plastic wrap

u/Cold-Kaleidoscope974 Jul 20 '26

Spider wood always gives off the most biofilm ime. There's nothing to worry about.

u/InappropriatePea Jul 20 '26

In all my googling nothing could have prepared me. It was almost overnight too.

u/Cold-Kaleidoscope974 Jul 20 '26

Ha yeah it's pretty disconcerting if you aren't ready for it. It's a shame it almost always happens on a new set up because it's ideal for shrimp, snails, oto cats and such.

I think it's pretty beautiful in a weird, alien, ethereal way. At first anyway. It's a bit like snow: nice when fresh but eventually it gets all manner of mulm and debris stuck in it and doesn't look as nice.

u/ItsMyGayThrowaway Jul 20 '26

If I was a shrimp I'd be foaming out the mouth at this image.

u/InappropriatePea Jul 20 '26

This comment makes me unsure whether or not you actually are a shrimp in disguise.

https://giphy.com/gifs/l4FGjjpumEDXgnVXG

u/celyro Jul 20 '26

Yeah you can suck it off with the siphon. Standard practice when starting an acquarium

u/InappropriatePea Jul 20 '26

I’ll get on that.

u/MissMadison240 Jul 20 '26

Now that’s some delicious looking biofilm

u/InappropriatePea Jul 20 '26

Suspicious number of shrimp masquerading as human in this thread.

u/Nude_Master69 Jul 20 '26

Thats an all you can eat buffet for shrimp and pleco, just keep the sensitive plants like buce away from it

u/InappropriatePea Jul 20 '26

I can’t even remember what these plants are.🙈
I guess I’ll be pulling out the siphon tomorrow.

u/AdorableFile8721 Jul 20 '26

oh... that's what happened to my buce ..

u/Nude_Master69 Jul 20 '26

Yeah They don't like it

u/Howdy132 Jul 20 '26

Spider wood is the worst of all. I set up a really beautiful Aquascape for my stepmom and she threw out the spider with because it got "fungus".... I told her it would happen and next time I called to check up on it she told me she threw it out. It was a beautiful red spider wood too

u/InappropriatePea Jul 20 '26

Oh no mom! That sucks. Finding a good piece of wood is like finding a diamond.
https://giphy.com/gifs/z1P7oRqNJqjydDkfr3

u/Dc_gunslingah Jul 20 '26

You need Daphnia

u/InappropriatePea Jul 20 '26

From where? 👀

u/Dc_gunslingah Jul 22 '26

I ordered mine from Amazon

u/Fagamuff1n Jul 20 '26

Mystery snails are great at cleaning this

u/InappropriatePea Jul 20 '26

I really would like to give these tiny cuttings a fighting chance before getting snails in there.

u/alphawolf29 Jul 20 '26

i dont like mystersnails they kind of bulldoze all the flora

u/PlayStupidWinStoopid Jul 20 '26

This happened to me with spider wood even when boiled. Tried brushing off, cleaning, shrimp— just had to wait it out

u/InappropriatePea Jul 20 '26

I boiled it for so long. This stuff has to be mutant.

u/cakeorcake Jul 20 '26

same for me with spiderwood. it’s like it’s the ghost of its former land life

u/ifitfitsitshipz Jul 20 '26 edited Jul 20 '26

It looks like a driftwood condom! Haha Fish and shrimp will gobble it up. It looks weird, but it’s pretty harmless. I soaked my driftwoodfor about 5 days before putting in the tank. I changed the water out once or twice a day. I did that mostly for the tannins. There’s a little bit of biofilm on one of them, but the other ones still has some pretty significant biofilm, but not like in your pictures. I’m getting some shrimp and snails in the next couple days once they arrive from the mail order supplier. They will be happy to have a delicious welcome home treat like that.

u/InappropriatePea Jul 20 '26

It’s actually in my preschool classroom. The kids keep asking ‘who sneezed in the tank!?’

u/raisedbycoasts Jul 20 '26

Did you boil the wood first?

u/Peytonb11 Jul 20 '26

Mine looked the same after about the same period of time. I did nothing to it and it eventually was eaten/degraded and was completely gone after 2 weeks

u/InappropriatePea Jul 20 '26

Eaten by what?

u/Crazy_Investment_641 Jul 20 '26

If you mean what ate my biofilm, these guys would be the culprits.

Clark and some pink leopard ramshorn snails

u/Crazy_Investment_641 Jul 20 '26

This is my applewood. The fish have even been picking at it and it remains. It honestly looks infected with something 😂 pick it off if it bothers you but it’s harmless and fish shrimp and snails love it

u/InappropriatePea Jul 20 '26

I’m a solid 5 weeks away from a completed cycle so there’s no fish to eat it.

u/SuspiciousGur4874 Jul 20 '26

Get some neocardinia shrimp and a few snails and it will be gone in no time.

u/vorotan Jul 20 '26

Test the water parameters. If ammonia shows 0, add some amano shrimp

u/MissionPlantedTank Jul 20 '26

Consider adding one or two hardy fish. You can also add some amano shrimps. They are super hardy, just introduce to your water slowly.