I'm building a new system and found a great deal I think on a ViaAqua terminator 36 watt UV sterilizer. I've never used one before and am wondering if anyone could help with what size or brand pump would be best to use to get minimal flow for maximum sterilization without over heating the water in the unit. It will be on a 100 gallon total water volume system. I'm planning to pump the water out and back into the first chamber/Skimmer section of the refugium.