So, a while ago I bought my girlfriend a five gallon tank and a betta. The two of us got the urge to buy some more fish, so after a bit of research we added five neon tetras. Four of them looked fine, were swimming around and such. Number five though was off by himself and right near the surface, about as far away from the others as he could get. Fast forward to the next morning, and the loner is nowhere to be found. Figuring he died somewhere and I just couldn't see the bugger I decided to remove some of the plants (and the other fish) just long enough to find him so that the body wouldn't be in there rotting any longer than it already had been.
Found it pretty easily, but I noticed that about a third of the body was missing, looked like the internal organs and such. Now, I know the betta was completely ignoring them when they were swimming around, he didn't even chase them a little. You think the betta did the eating, or the other tetras? Also, I know neons are very prone to dying (and there are no external signs of disease on any of the other fish, I looked very closely) so how worried should I be here?
I've got the remaining four neons in a seperate container for now. I don't think I'd like to put them back in with the betta but I'm not sure. I've got another tank they can go in (plus some more probably, as its a larger tank and I know four is really too few).
Anyway, just thought I'd share. Lesson learned: resist the temptation to buy fish on a whim.
Oh yeah. For a while I thought I'd also broken the filter, but I did eventually manage to get it running again. Good times.