Hello,
I currently have one in a 75gal set up. I have had it about 7 months and it is doing great. When I bought it it was all yellow with the dull orange bar and is not starting to mature to include color change a development of lyre tail. Beautiful colors starting to come out. currently about 8"+.
Based on what I have read 75g might be a bit small, but seems to have plenty of swimming room and has been one of my healthiest fish. Good excuse to upgrade to a larger set up in the future as well.
Anything in particular you want to know?