and dont worry about being rough, im like that with some fish. like oscars, kinda. i honestly thought i hate them, but after having mine for as long as i have i love them (or at least i love mine). ive raised it from a 0.5" fry and its currently about 7.5". i jump on anyone keeping them in 55s and 75s. after moving mine into my 200 and seeing how well he does, id NEVER move him into anything smaller. IMO 200 is the minimum for oscars after keeping mine in this size tank lol