I have one that has some kind of tumor and a very bent spine (and has been this way for many months), another that I put down last week with dropsy (bloated and pineconed), and I have at least 2 others who's spines are bending as well (bending downwards). I also have another that may be developing a tumor or something - it's abdomen looks a bit lumpy on one side.
Any thoughts? These were the first fish in my tank, so I've had them about 15 months or so. They grew alot after I got them so I assume they were juvies.
How long do zebras typically live? Could this be old age? Maybe a side effect of genetic interference? I'd say about half of these guys are starting to show some kind of "issues" over the past few months. Other fish in the tank include guppies, endlers and hybrids, a betta, a few SAE's, a few regular (non glo) danios, and 2 types of corys. Everyone else seems fine, except the guppies always have torn fins but they nip each other alot.
I should do some tests I guess - haven't for a while. I'll do some tomorrow, but I doubt it's water quality as I have excess filtration, am heavily planted, and do weekly water changes and gravel vacs religiously. But I will test tomorrow.
But anyone have any thoughts?