Tank size is 30 gallon rimless. Tank mates are on tiny gobe with tiny pistol shrimp. 10 hermit crabs. I small mandarin and another female seahorse. Temp 75, nitrate 10, PH 8.2, KH 11, Salinity 1.26. Change filters every day, clean shimmer every day. 10 gallon water change every two weeks. We recently added the mandarin. I am also adding Vodka every day but have not reached the point the point where nitrates are reducing. I also have a mixture of charcoal and phosgard that I change once a month. I am trying hard to reduce nitrates but am fighting it all the time. I am thinking of going to 5 gallons every week to see if it helps. There is also a lot of live rock with mushrooms and a couple of small leathers and three gorgonians.