My daughter's 29 gal softie and LPS reef runs on just an oversized HOB skimmer and a small bag of Chemi Pure Elite nano, changed out monthly. No socks, canister filter or fleece roller.
I do a 10% water change once a month, and it's fine. The tank is pretty lightly stocked though.
I do a 10% water change once a month, and it's fine. The tank is pretty lightly stocked though.