runningrandy04
Reefing newb
Hey guys, I'm starting up a 20L reef tank. I have the Bio-Wheel 350 for mechanical and chemical filtration but I'm still can't decide on what do do for biological filtration. My first thought was to get 30lbs of live rock and I have two 145gph power heads to get good flow through them, but is that enough to get the nitrates down? The deep sand bed or plenum would keep my nitrates at 0 but I've heard that they can leak a lot of nutrients back into the tank after 6 months. If I could get away with just the rock, that would be awesome. If there is any other advice I'm all ears.