Hello all, I've got a brand new, reef octopus 4" skimmer. I have the gate valve set all the way open, to give it the lowest water level possible, but once or twice a day when I come check it, there is about 1/4" of nasty green water in the skimmer cup. My question, is this normal? even on the lowest setting for the skimmer to be skimming so wet? I could basically go 3-4 days before the skimmate was completely full of liquid. Skimmer is sitting in about 9-10" of water.

