[chuha]

how big will my 5 p's get in a 60 gal tank.

 

[RhomZilla]

All depends what kind of species of Piranha you have, and what size they are now. Most hobbyists would tell you 20 gal per fish. But that myth can be defied

 

[GARGOYLE]

If you keep them in there for to long your gonna be down a couple of p's. p's need room in the tank to explore and swim freely

 

[SnowCichlid.]

All depends what kind of species of Piranha you have, and what size they are now. Most hobbyists would tell you 20 gal per fish. But that myth can be defied

... can we awesome that you have the ever so common RBP, if so they can reach lengths of up to a foot

 

[Wolfman]

Their diet will also determine their adult size. Additionally...if you do very frequent water changes, they will tend to grow much faster.

 

[Show_Me_The_Teeth]

At least 6 inches and like wolf said do a lot of water changes and they will grow quicker. Red bellies do not apply to that 20g per fish rule. I have 14 reds and 4 ternetzis in a 200g and they live just fine. Crowding reds is not a bad idea either since it seems to tone down their aggression amoung each other. They are not allowed to make territory because of all the other fish in the tank. So they just deal with each other. This has work for me countless of times. Good Luck.

SMTT