My devilxmidas is outgrowing my oscar.When I got them the oscar was around 3in an my devil around 1 1/2in.Now there both around 6 inches. They both eat hikari bio-gold, talapia filets and shrimp like champs. But the devil has been growing like a weed. Poop looks fine, water reads good and is crystal clear. I have been doing 40% water changes every four days to promote rapid growth.But the oscar seems to be growing really slow. Oh yeah there in a divided 90 that will soon be the oscars to itself when the 75 is finished cycling.