I set up a fish tank.
It’s a low tech planted tank, using the Walstad method. Kinda like the one described here.
The TLDR is that it’s chock full of plants and critters that maintain the water quality without needing to do lots of cleaning, water changes, or filtering. And it’s cute!
Sometime last year I was admiring the betta fish at Mappins and Ben encouraged me to get one. But I wanted to read up on them first, and it turns out bettas prefer larger tanks, lots of space, things to do. Don’t we all?
So instead of getting a betta I decided to set up a planted aquarium because it seemed like a cool hobby.
Given it’s full of soil and some people haven’t had luck setting up this style of tank, I was cautious about the potential for the water quality go weird and gross. But it was perfect from the moment I set it up. There was a tiny nitrite spike at the start, but it settled down and I haven’t even registered any nitrates. It’s been a pretty steady PH around 7.6 which is about what the tap water is. So all the numbers have been super stable, presumably because of the plant load!
I did a 50% water change maybe a month in. Not because I needed to, but because I wanted to give it a try. It did improve the colour of the water, but it’s been fine since.
One of the coolest things were the critters that hitched a ride along with the plants.
I had a population of bladder snails (they can float!!!) and seed shrimp (so cute!!!) explode in the tank. This was a great way to start off the ecosystem, because the snails and shrimp were a great cleanup crew. I can’t stress enough how much detritus used to be on the bottom of the tank, but now it’s perfectly clean.
After I was sure the water quality was stable, I picked up some shrimp. They’re yellow cherry shrimp (neocaridinas), and I also accidentally picked up a transparent one which I didn’t realise until it was in the bag.
The shrimp are great. They scrounge around the looking for tasty treats, and clean up lots of dead stuff. They swim and crawl around the tank, and sometimes make me think they’re dead when they stop moving in weird positions. They’ve got a lot of personality.
Maybe a month after the shrimp were settled in I went back to Mappins because I saw they had ember tetras – a teeny tiny fish that I was hoping wouldn’t eat my seed shrimp.
I was wrong, they ate the seed shrimp. But they’re the perfect size for such a small tank at up to 2cm long. And once they’re comfortable they’re quite an outgoing and social fish.
They also never sit still so they’re impossible to get a photo with my phone camera.
Anyway, it’s been three months and the tank has gotten overgrown. So I gave the tank a bit of a trim. I didn’t do all of the plants but took a lot of them down and replanted them to make a thicker forest.
I think I freaked the fish out, because they’re all schooling again, rather than out exploring by themselves.
I also found a bunch of the shrimp that were in hiding. I’ve definitely got at least five in there. A bunch of them were chilling under the pump, I guess they like cleaning out the gunk in there and it’s a good hiding spot 😌
I also threw together a quick Walstad style jar. Partly because I thought it was cute, and partly because I know Ben wants to start a tank and it’s a good way to keep some cuttings alive. I’m very curious if the jar will work out or not, but from everything I’ve read it should be fine.
So that’s my three month tank.
@ash i didn't know snails could float and swim. :catquake:
@ash@press.ash.ms @chandlerpeachy they totally can! They're adorable little idiots.