No I am sorry. I should have been more detailed. It is a medical grade oxygen concentrator. I see them used a lot for glass blowing and have read of a few people using them for aquaculture but the details are limited. They produce about 93% pure oxygen from atmospheric air. My system consist of 2,000 gallons, 14 cubic feet of Kalnes bio media, and a 1800 gph pressure pump and filter filled with xtreme fine bio media. All has been really well so far. I have probably about 600 lbs of tilapia but my oxygen levels are starting to struggle.