- Joined
- Apr 13, 2020
- Messages
- 1,089
- Reaction score
- 1,294
I have a buddy that has had a powder blue for years in a 75g which is the same 48''x18'' footprint as the 90, also with a couple other tangs. It's about 4 - 5''. If you can provide a proper diet and also keep the water clean you can definitely do it.do the powder blue tangs get too big? for a 90 gallon