My male molly seems to be having some issues. He'll swim normally most of the time, though maybe slightly tilted to a side, but when he goes to dive deeper in the tank he does it in a fast spiral until he hits the bottom - and then sometimes keeps going for a couple of seconds more.
I do water changes regularly as suggested, have a fresh filter and the only change I've done to the tank lately is to add a live floating plant. Could the plant have brought something to make the fish sick? Should I get rid of it?
My questions are:
- Is this a swim bladder problem, or another disease?
- Is it contagious? And is there anything I can do to fix it?
- Is it something he can live with, or should he be euthanized to put him out of his suffering?
The only place I would have to isolate him would be in a small bowl, which I'm sure would add a lot of stress. Should I still go ahead and do it?
I've heard feeding it peas as a recommendation, but find few to no reports that it actually works. Can anyone confirm that it's a valid treatment?
Before you ask:
It's a 40 gallon tank, with 18 small fish in it (mostly guppies and tetras), well maintained and with the water chemistry right where it should be.