I use the CPR continuous overflow. It has never once lost siphon in almost a years time. You use a small aqualifter pump that sits on top of the overflow. Nothing major. If the power goes out the pump starts the siphon back up by itself. I had the other kind with the tubes but I could never keep the siphon going. lol
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.