I have a Pro clear 200 red flex sump under a Waterbox 110.4. My question is regarding the water level in the sump. I'm not sure where to set the water levels in order to keep enough water flowing to the pump. Can someone tell me how much water should be in the sump chamber or a guideline where to set the adjustable weir? The tank also came with a Tunze brand, refugium red light, and I'm not sure whether that should be submerged in the section where the Chaeto or pompom algae will grow or it should it should be attached to the outside. The magnet can be set up either way, and it appears that the light is submergible from their website. I have a sponge on order for the section just prior to the sump. (There had been some Aiptasia in the pump section so I chose to replace the sponge it just isn't here yet). I'm grateful for any insight. This is my first sump and I'm trying not to let it beat me. 





