[ncith]

Hello I have two RBP in a 20 gallon high tank, and they seem to be doing fine. They have been in there for about a month, and one is 5 inches long, and the other about 4 inches. I was just wondering if they will continue to grow to full adult length, or if I should get rid of one of them and just allow the one to be in there by itself. Thanks for any insight you have

I appriciate your information. I believe I might look into buying a rhom as you suggested, but there is just one problem all the fish stores around me only have RBP. Do any of you know if I could request them to order one for me, and the right price to pay for one. Also are Rhoms also known as black Piranha?

 

[NIKE]

have you thought about upgrading to a bigger tank if so you should keep those two and put a divider in till your new tank is ready and if you are not going to upgrade i would sell them both and get a small rhom that would be fine for a long time as they grow verry slow

 

[Xenon]

I would recommend buying a bigger tank and one more rbp. If this is not an option.....those 2 RBP will not grow to full length in such a small tank and could end up fighting when things start to get cramped...

 

[piranha198220]

theres a rule for tanks below 65gal 20gal per piranha thats what you should stick by the bigger the tank you have the bigger they will get

your p's will not grow in that tank its way too small for the 2

 

[rosecityrhom]

Growth also is determined by water perameters mainly. I think I heard this from Frank is that one of the main reason's piranha's growth may be stunted in smaller tanks is that they send off hormones in the tank which tells them to slow growth. This is often why you see hobbyists changing water at least once a week besides the fact that they're keeping it clean and reducing nitrates.

 

[RhomZilla]

I would recommend buying a bigger tank and one more rbp. If this is not an option.....those 2 RBP will not grow to full length in such a small tank and could end up fighting when things start to get cramped...

Growth also is determined by water perameters mainly. I think I heard this from Frank is that one of the main reason's piranha's growth may be stunted in smaller tanks is that they send off hormones in the tank which tells them to slow growth. This is often why you see hobbyists changing water at least once a week besides the fact that they're keeping it clean and reducing nitrates.

I swear... theres no other info I can tell ya. Everythings been said..

 

[Mr. Hannibal]

Agree!...and possibly sooner or later they will fight due to territorial bahavior...

Get a bigger tank if you can!

 

[SnowCichlid]

Bigger tanks are always great, but not always an aproachable solution