I have just purchased the jbj glo LED light for my nano refugium chamber. Right now I'm running the sponge, carbon, and bio rings in the basket, I plan take that out and add some cheato and live rock rubble into the main chamber. Then run the carbon and rings in a separate chamber. Does anyone else use the main chamber for a fuge? Any tips or suggestions? Of the four chambers you get two have return pumps the main has the basket and the other two are empty. My setup will be the main is the fuge, with the new LED running when the main lights are off, one chamber has the skimmer, one will have the carbon and rings and the other two will have return pumps one of which will have the heater.