I keep hearing people talk about tanks in which they do not have to do water changes. What does this require?
My tank is a 42 gallon hex tank with about a 2" live sand bed and about 15-20 pounts of rock. I have a CPR Backpack 2 filter. Should my tank be able to process ammonia, nitrites, and nitrates entirely without water changes?
92-gallon corner tank, 100lbs of LR
, 140lbs of sand, 250watt 10,000K MH
, 110watts of actinic PCs, Mag 7 return, custom refugium, AquaC EV180 w/ Mag 5
Female lyretail anthias, eyelash blenny, tomato clown, saddleback clown, firefish goby, 2 sand-sifting stars