The Genisis system has been awesome. Very easy to set it and forget it. As long as you have fresh saltwater in you bin it will continue to change out the water for you. I have mine set to change out 4 gals every day. The biggest challenge is quarantining everything before putting it in your tank. I have QTed all my fish and just recently had an out break of what appears to be marine velvet. No idea how I got it in the DT since I have had no new fish additions in quite some time. I lost about 8 fish to it. I was told that it may have come in on a coral but I really don't know what happened. I dip all my corals but do not have a QT tank for them.