i figured a 75 would be best. but like drey said im tight on space do you think i could get away with him happily in a 65 gal (36 x 18 x 24). same width as a 75 but would fit the 3 foot space i have for a larger tank, i appreciate everyone advice i'd just like to see what you all have to say about the 65 idea. he currently lives in a 37 and hes about 4 1/2 inchs with some other fish but im gunna remove them when he gets too large. I wanna upgrade around January, cause hes still comfortable now and ill have the extra help setting it up then.