Hi all, I've been using the Vertex bio pellets for about 5 months now, and have had an issue with this yellow/brown build up in the sump (like small sand particles). I think it's from the bio pellets, as it's almost the same color. With in a weeks time the sump and all of it's componets will be covered with this dust. Any reffers have this issue?
Vertex Aquaristik > Products > Media > Probiotic > Pro-Bio Pellets
Vertex Aquaristik > Products > Media > Probiotic > Pro-Bio Pellets