for a 22g tank. Dimensions are 36x12x12. Also have a sump/refuge same size under the main tank. Main has 1 10,000k and 1 actinic, 1-2'' aragonite bed, 2 1'' overflows, 3 powerheads, mini penguin, (lack of live rock to stock) right now the sump has 24'' 50/50 and a 10,000k, prizm skimmer, 3...