So, it's been a while since I've had any fish. However, the last fish I had kept dying with their tails to the sky and their faces in the gravel.
I noticed this happened after I put my heater in. The heater is keeping the water in the right spot for tropical fish (had a betta) and it's functioning fine, so I have no idea if the heater caused it.
I've used this tank (5 gal
"square" tank [it's rectangle]) for many fish in the past and they've always died "normally."
Right now I am letting my tank run with just the filter, heater and thermometer (and obviously water.) Nothing else is in there. I'm going to dump it out and rinse it out a few more times before letting it really cycle for a fish, but I'm wondering what may have caused them to die like that? Is it just the way the fish were "built?"
Even when I put my goldfish in there (after cleaning it out well because the betta had ich) it also died face down after having to swim in that position, or sideways like a flounder.
Should I remove my heater and replace it, or see if another fish does the same? I think two incidents is enough, but I want to find the problem.
Sorry for the wall of text lol