Two more tetras dies D: It's really odd - the first one I saw was swimming vertically, head upright at the bottom of the tank, and it was covered in ick, so I decided the kindest thing to do would be to euthanize it. When I came back the poor thing had died and been sucked into the filter. The second time I saw a fish swimming oddly (not quite vertical, but still oddly) I decided to net it but leave it in the tank so it didn't get sucked in, and surely enough it died too. Then I saw another fish swimming at a strange angle at the top of the tank and gradually floating towards the filter. I netted that one, too, and it also died. Then this morning my remaining eight tetra weren't eating, kept swimming to the bottom of the tank like the others, and then back down for a bit. They also only had the tiniest bit of food this morning, the rest I had to fish out. I've tested my parameters again:
Amm: 0.1 mg/l (I was thinking it might be something to do with this? I could buy some ammonia remover?)
Nitrite: 0.0 mg/l
Nitrate: 0.0 mg/l
PH: 7.0
Temp: 27 C
I've been researching all morning but I couldn't find anything. I thought it might be swim bladder but they seem to be able to swim properly when they want to - nevertheless I might feed them a pea just in case? All signs of ick on the remaining fish have gone, but I'll still continue the meds in half doses when the next one is required to make sure. I've just done another 25% water change, and none of the fish are staying at the top anymore. However I can only count seven - I really don't have a clue what happened to the eighth :c We're going to get them some extra plants to make them feel more comfortable this afternoon, and an air stone in case it's an oxygenation problem.
EDIT: I found number eight! He was just hiding c:
EDIT EDIT: Okay so we now have an air bubbler for oxygenation and three new hygrophila plants. The neons seem to really like them! I fed them a few peas earlier in case it was swim bladder, but they only really nibbled at a few of them. They're no longer staying at the surface which is good, but a few are swimming wonkily. I'll keep on with the peas and the daily water changes so hopefully they'll do them some good. I have some aquarium salt and vallisneria spiralis set to arrive on Wednesday (I think?).






























