Jimbo7
Aquarium Advice Addict
A 75 is going to be too small for both tangs, and borderline too small for just the one. I would go with the yellow, and move some rock out to a sump if you have one to create more swimming room.
It is a 48" 75 gallon right? not the bowfront one?
It is a 48" 75 gallon right? not the bowfront one?