sean spendley
New Member
Hey-
Wanted to use sand as a biological filter but was unsure about the dsb...will having only a half inch to an inch of good quality live sand still act as a nitrate reducer or does it need to be deep to have any effect at all. Thanks a lot.
Wanted to use sand as a biological filter but was unsure about the dsb...will having only a half inch to an inch of good quality live sand still act as a nitrate reducer or does it need to be deep to have any effect at all. Thanks a lot.