Agree with TankGirl!
Innes, I saw you found our various pirhana threads, sorry most of us are not big fans of them. I guess you also saw thet they are illegal in many of the U.S. states. Not all states though, so we could surely benefit from an expert on them.
2 things, if you are interested:
A: Start a thread in FW
general, and tell us about yours, and why you are such a fan, I'd be interested to read that!
B: We have a section for Fish/Plant profiles, write up one (or more) for a pirhana species. We can use all the fish profiles we can get!
Lots of generalists here, so we always welcome species specialists.