75 gal

[Styx]

Would a 75gal be too big for a growout tank?

 

[The_Gilly]

not really the bigger the better but rememeber you've got to keep it clean!

 

[LoachLover]

The Bigger The Better is basically the rule of "fin"

 

[yeeviabetta]

You are right. Bigger the better. I just got a used 75 gallon fullset tank and my second batch red babies loves it! They swim all over and have so much fun. Tomorrow I am getting another used 55 gallon fullset tank for my blue babies.