My 55 has 2 breeding angels, 4 breeding GBR's, 2 different Apisto species, rummynose, Von Rio, Cochu's Blue tetras, 1 lone platy, and a Queen Arabesque pleco, and I have a Penguin 350 w/2 bio-wheels and a Eheim ECCO 2233 (now know as 2234). My fish breed like mad. I'm way over filtered, but I...