Most other tangs require larger tanks but the yellow tang is one that can be kept in a 55+ without any trouble.
I have a 4ā€¯ yellow tang in a 55 gal
as well and it seems quite happy swimming about constantly in and out of the lr
. It also tends to stick to lower to middle of the tank so I think the higher tank would be kind of a waste unless you just like the look of it. My lfs
jumps about $140 when going from the 75 to 90.
Make sure you keep enough nori around, they can consume quite a bit each day