Hotly debated topic.. but the usual advice is 3x turn over for a sump
I would question why you're using a 1" drain and 2x 3/4" returns. Your tank is pretty much 15 gallons, right? 3/4" pipe is rated for approx 600 gph
What are you going to be running in your sump?
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28g Nano Cube drilled with 13g sump in stock stand. Vertex IN80 Skimmer, Phosban 150 Reactor, Apex Controller, DIY LED with stock hood, dimmable
Established March 2006
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