Gold P. Tank Size.

[ballinouttacntrol]

All piranhas are slow growers aftter they reach 5-7 inches.

You won't be able to ID it after another inch though.

 

[Otherone]

Also depending on species, seahorses are fine in a 20g if you (otherone) are implying they wont be ok. People keep dwarf seahorses in tanks like 2.5g fine

Good luck means Good luck there is no underlying implications of any type so lets not make it so. If you've ever kept seahorses they can be a real bastard to get to eat.

 

[cichlid_starter]

which is why I will go with tank raised