@drcole what generation are your Radions? I have G4 and control them with a WXM module through my Apex. Neptune just announced that they are going to stop making the WXM so yesterday I bought a spare backup module just in case.So, the XR15s are mounted and looking great. I found that my algae issue is linked to a higher phosphate, currently at 0.32. Woorking on lowering that with NoPox. Did a deep clean and continuing to dose NoPox daily to help control and the cyano is barely coming back. My tank is in the best spot it has been in in a while, I just want to get things right so I can jump into the acro game. All I really want are like 15 solid acros going, but I'm sure that wont be enough. To also help with my phosphates I have a BRS dual reactor on order (currently out of stock) to run GFO.