I started keeping P's sometime around '96. Made my mistakes like eveyone does. Learned from them and kept going. I didn't get the internet in my house until literally 2002, discovering Fury shortly after. 90% of the knowledge I have of keeping piranhas, I've learned from pro's on Fury. That web site has time and time again changed (for the better) how I do things with keeping these fish. Excellent group of people and staff.
And to think I just stumbled on it one day surfing the net. I had no idea what I had just "stumbled" on and how much of a vital piece of knowledge it would become in the next years for me.
Now I'm not putting MFK down here. I believe that this forum is a solid forum for people in fish keeping. If piranhas are solely what you keep...I would point you to Fury. If you have other projects going on outside of P's, like already stated, MFK is a perfect "accross the board" forum, meaning it doesn't mainly focus on one.