Refugium / Sump plumbing
I have a tank with a built in sump in the back (Clear for Life) and I have been wanting to add a refugium, a calcium reactor, and a chiller for obvious reasons but my tank did not have any bulkheads. Now it does have a 3 inch area where I can tap off with water. Does anybody have any input, how I can siphon water from the back of the tank and return it back? do I need one pump? two pumps? Is it even possible?
I guess diagrams would help as well.