Hey guys, I have a Sea Clone 100 aquarium Skimmer on the back of my Bio cube. The slimmer does not seem to be creating bubbles, and the water simply flows through it and out of the return. It has been running for about a week now, and I have tried dialing in the air supply multiple times. Has anyone else experienced this? Does anyone have some suggestions as to what the problem may be? Any help would be greatly appreciated.