Length or Height more important for tank?

[Aquattro]

Originally Posted by DanG

I didn't know that. It makes sense, but something I never thought of.

So in that case, a 90 (48 long, 18 deep and 24 tall) would be a bad plan?

It's fine. With the amount of water movemement in a reef, evaporation from stronger lighting and having a sump and or skimmer, gas exchange isn't really an issue.