Bah. Its excess protiens. I wont ask what his niotrate and phosphate levels are, because with all that algae, it HAS to be 0. My question is how does he remove the used protiens.
I.E. food in -> ammonia out -> bacteria eat -> nitrate produced. PWC
takes out a wee little insignificant bit out, and the rest is left to feed his algae. Unless he does something else.
does he do something else?