Yes, firemouth is underrated because it is common and cheap. It’s a surprise that someone would devote a 180 gal for the most common fish. I tried other rarer Thorichthy species such as Elioti and aurium, but ultimately returned to keeping a firemouth because it is an easy fish to keep, and beautiful in its own right. Firemouth has the reddest breast of all Thorichthys, and having been domesticated for such a long time that it is disease bullet proof. Other exotic Thorichthy species I kept aren’t as easy, and I lost a number to bacterial infection.