I am downsizing aquariums and would like to pass this one on to someone who has knowledge of saltwater tanks. I am keeping my reef system but getting away from fish. This is FOWLR. I sold my fish, but this aquarium is well established with about 30 lbs of nice quality live rock. I am ammonia dosing to keep the bio system strong, and will include a bottle of Bio Spira to add when it is moved and set up again. This has a clean shallow bed of calcium carbonate sand, two power heads at the bottom, hidden by rocks, and two hob filters, one set up for mechanical filtration and aeration only, and one running chemical filtration. It has a submersible led blue/white light, but with better lighting would make a great reef tank. I will leave it up and running until sold so everything is healthy. The live rock alone is worth my asking price.