I'm not so sure about this. My vatf seems to growing at a good clip still now at 15-16". I'm thinking you will probably be better off going 8x4. They are incredibly fast fish so the more room the better.Ok . I intend 8x3 lifetime tank
Ok .i could upgrade if need beI agree with KNH i just moved my 14 incher from a 270 6x3x2 to my 600 8x4x2.5 .....they will need the space