I have a 75 gallon rr DT with a 29 gallon sump left side in sump skimmer,middle return pump and right side is the refugium. I don't have much room between the bottom of my display tank and the sump maybe like 6-8 inches. What are you guys using for refugium lights? And while we are on the refugium subject I will have 1 drain running into the skimmer compartment and 1 drain into the refugium. Should I have a filter sock in the skimmer section and the refugium section or just 1 in the skimmer section? Thanks for any help