amount of RB

[andy1985]

How many RB could you fit in a 4 x 2 x 2 120 gallon tank?

 

[Ohio Entusiast]

If you mean how many RBP will comfortably fit in that tank, I'd say 4 or 5 at the most.

 

[andy1985]

yes that what i mean't ok cool. are they the smalest type of piranha that shoal?

 

[Diogenes]

yes that what i mean't ok cool. are they the smalest type of piranha that shoal?

if by piranhas that shoal you mean true piranhas (pygocentrus) then I think yes. Theres only 3. RBP's (nattereri), caribe, and piraya. RBP's and caribe stay around the same size (about a foot full grown), and piraya's get 22-24" long.

There are other piranha species that shoal, but aren't pygocentrus piranhas and are therefore not considered true piranhas. Geryi, maculatus, spilo, some pristobrycons and pygopristis denticulata, catoprion menton to name a few of the top of my head.

 

[pyromaniac]

6 rbp,can start off with a few more

 

[jp80911]

or go straight to caribes if you can get them.

 

[Ohio Entusiast]

6 rbp,can start off with a few more

Are you saying you'd keep 6 [or more] 12'' fish in a 4' aquarium?

 

[pyromaniac]

well what if you put it this way.. will you keep just 4 8-9 inch piranhas in a 120 gal when lots of people have 4 of the same size in a 75gal tank?-and doing very well.
if they grow more than 10 inches,then maybe you will have to get rid of one,but 12 inches isnt that common.

 

[andy1985]

Thank you for ur help not sure if i get RBP. i didnt think they get that big. I was looking to have large shoal of fish swiming around maybe go for some smaller fish instead.

 

[Armand]

If you mean how many RBP will comfortably fit in that tank, I'd say 4 or 5 at the most.

Not sure man. it is a 120 gal, he could easily go with 7 all the way long.