Overflow, Return Pump, Sump
I am looking to add a 10 gallon sump to my 37 gallon reef. I won't be able to drill the tank so I'm looking at an overflow box. I've seen cpr, rapids pro, lifereef, and eshopps overflow boxes. I'm leaning toward eshopps because of cost.
For a 37 gallon tank and 10 gallon sump what size overflow would you recommend and what return pump?
What can be done to prevent the siphon from failing on one of these setups?
Any help is appreciated.