I agree it is a very easy fish to keep. I believe it should be kept in a fish only tank. your tank should be made of glass, because they scrach acrylic all day long. You can buff the scraches out, though if you have a choice I would go with glass with this fish. You are also commiting your tank to a semi-aggressive. So make a stocking list and assure you will be happy.
A 75 gal is also small for this fish as an adult. Just keep that in mind, you will need to upgrade when it is time.
Good keeping