Not sure what’s going on. I have a Waterbox 110. The water level in the display to high about 1/2” below the rim. The water level in the weir is right at the top of the drain. The water level in the sump is where it’s suppose to be. The water level in the return chamber is about half full, there’s a to sensor that keeps it at that level. The appears to be good flow coming out of the return nozzles. The tank has been stable and healthy for at over a year or more. I have an issue with hair algae and some cyano on the surface of the sandbed. The corals are open and vibrant and the fish are active. I have a Sicce Syncra 6.0 set at 75%. Any suggestions on what might be causing this and more importantly what I need to do to correct this, is greatly appreciated.


