I just got back from Pet Smart. The only filter media they had was Aqua Clear BIOMAX, FLUVAL CLEAR MAX, FLUVAL PRE FILTER, & FLUVAL CARBON. Which 3 shall I use??? Top, Middle, & Bottom?
Find someone selling matrix by seachem and smash that in all 3 trays the mech they provide I find is good enough for most fish and matrix is the best bang for buck media IMO.