The marine aquarium hobby can cost quite a bit to maintain. With things like salt, supplements, and food constantly needing to be replenished, additional costs like electric bills can take a major, and oftentimes unexpected, toll. And that’s an area where hobbyists can really cut costs. Without changing any of your current gear, you could shave an hour or so off your lighting schedule, cut back on the size of water changes, feed a little less, and just find more efficient ways to operate your tank. If you don’t mind making some big purchases, you could switch to solar tubes for lighting, install solar panels to offset some of your tank’s electricity use, or just get rid of energy hog equipment and replacement with more efficient products. Of course, this route assumes some sort of break even point years down the road.