Male platy started sitting on bottom of tank, thought he was going to die, but was moving fins fine, swiming up to feed. Has been like this now for 3 weeks. Spoke to fish shop who suggested he was being bullied by other male platy (only 2 in tank). Behavious backed up this idea, so took bullying platy back to shop and added new female platy today. Male platy still sitting on bottom of tank, and was worried as he seems to be listing more to one side, it's like he has lost his buoyancy and while he can swim up, he sinks back to the bottom. Scales and eyes look fine as far as I can tell. Is there anything else I can do?
Environment: 90 litre tank with happily breeding guppies, 3 peppered bottom feeders, 1 catfish, 5 neons, 3 barbs (?), a crab, 2 frogs, plants, sand, rocks. Water quality and temperature seem fine except for high level of nitrates, so do partial water changes at least once a week. Tried various nitrate removers but didn't work. Need to feed high number of babies regularly, but have sold a lot now, so hope this will help.
Environment: 90 litre tank with happily breeding guppies, 3 peppered bottom feeders, 1 catfish, 5 neons, 3 barbs (?), a crab, 2 frogs, plants, sand, rocks. Water quality and temperature seem fine except for high level of nitrates, so do partial water changes at least once a week. Tried various nitrate removers but didn't work. Need to feed high number of babies regularly, but have sold a lot now, so hope this will help.