looking to upgrade

[isnyc300]

so i am looking to upgrade from my 40b and need some opinions. what would be better for a mixed reef a 75g or 90.

 

[rkaragozler]

both the 75 and 90 have the same foot print, it's just that the 90 is a tad taller, if you can swing doing double the amount in water changes, i would go with a 90

 

[dacaptain78]

If space or cost is not an issue I would recommend a 120 gallon. The extra 6 inches of width opens up so much more aquascaping possibilities. Otherwise go with the 90 gallon.