I am new to this so if this iswrong I'm sorry. I haves 75 gallon tank with a fluvial 305 andmarineland 350 for filters. About 1/1/2 inches of gravel and crushed coral for substrate also many rocks for hiding. In the tank there are 1 p . Socolofi albino,2 p debasing,1 yellow tail acei,1 p crab,1 male yellowlab,2 cherry red zebras,1 I'm not sure yellowwith referee and a pleco