Originally posted by: tfinch2
25 gallon might be a little small for a piranha
Nah. I raised a piranha in a 25 gallon. Just get em when they're little. You might have to upgrade at some point, but they don't get too huge if you don't let em.
And if you feed them mice, be prepared for a very very very messy tank. Goldfish work just fine. Probably cheaper too.
Honestly, I'd recommend just getting one piranha. They're actually pretty fish, but putting multiples in one tank means they'll fight and tear each other up, leading to the potential for infection, injury, death, etc. One is easier to care for (and cheaper to feed).
You should be able to find them just about anywhere, they're not all that hard to come by. Petsmart is where I got mine when I had one a while back, IIRC.
Btw, the other advantage of goldfish is that you can drop em in whenever, and the piranha will dine on it's own leisure. I used to feed mine 5 or so a week, just drop em all in at once. It'd eat 1-2 right away, and the others would swim around oblivious for a few days as they were picked off one by one when he got hungry.