How many 20Lb bags of sand substrate do i need to fill my 75gal 48x18x21 at a depth of 2"? I'd prefer not to go anywhere past 2".
Short version I guess.dark_knights_99;1244382; said:Three bags of sand would be fine dude.
we keep the intake about 4" above the sandMeadows117;1249647; said:How do you keep from getting sand into the filters? just spacing?