Right now I have a 75g bare bottom reef and since I will be moving I am planning on upgrading to something bigger, possibly around 120g or so. My question is would it be better to make my new aquarium a sand bed? Is a sand bed woth it or will it be a pain in the ***? I have heard things such as you have to change the substrate every few years which I can't imagine how that's even possible, or pockets of gas forming in the substrate, algae growing all over the sand, or the sand getting blown around everywhere due to the powerheads. I would prefer ease of maintenance over aesthetics. What would happen if I never change the sand bed, because I probably won't if I go with sand. What to you guy's think? Sand or bare bottom?