Yeah that would work fine. In general, a sump should be between 20-30% of the tank's volume. And no it doesn't have to be drilled. You could use a commercial overflow box or a DIY PVC overflow. Lot's of build threads on those in the DIY sectionMoloch;4542611;4542611 said:So...I've got a 65g with a rena xp3 on it. I'm thinking about adding more filtration and was leaning towards an ac70. Would a 10-15g sump like yours be spot on for it? Would I need to drill an overflow into my tank or use an overflow box? Do you have a construction thread somewhere?
I'm intrigued now
Other option...I could put a 10g sump like that on my 20g, and move the magnum HOT from that tank to my 65...takes care of both issues....
