My daughter has one in her 20 gallon nano reef. She skims heavy and has it in moderate PC light and low water flow. All her parameters are 0 with the exception of nitrates which run 10 to 20. She has it on the sandbed and it is doing great! She doses B-Ionic, Reef Solution, Marine Snow and DT's regularly. She also does weekly water changes of 3 gallons. Here's a pic of it....
Very nice............she's doin a great job........thanks for the info.........they seem pretty hardy..........I bought one on impulse, cause I loved they way it looked , and the way it swayed in water