Piranha size

[BaileyIV]

i have a 55g tank with five, 6-7inch piranhas and i have a 2-3 inch piranha. I was wondering how big the little piranha has to be to be able to join my larger ones. please let me know.

 

[Fishermoe14]

you need a bigger tank just for the ones you have now..

general rule is 20 gals each p...

 

[BaileyIV]

really i was told from the place i got them from it is 10G per fish now what happens if there is to meny fish i was told they with arrgesive with each other and not enough air in the water..

 

[BigShawn]

Way to many in that 55g you have now think of an upgrade before you think of getting more that size should be in 75g really 100g + check thru some of these post and you should get an idea on the size tank you need to me thats going to be your biggest problem real soon......

 

[ballinouttacntrol]

Even at 10 gallon per fish, why do you have 6 and want to go with 7? You've cut the 10 gallon per fish rule into 9 gallons per fish and 7 would drop it below 8 gallons.

Did the place you got them from say that a 55 gallon would be okay for 6 piranhas for life or just that you'd probably lose some along the way?