How many gph do I need for my return pump?
My tank is about 30 gallons. My sump tank 3ft below my tank. I have 2 Aquaclear powerhead 301s for water movement at the top. So how many GPH do I need to have at 3ft in order to have a return pump that works smoothly?
I've heard there is a calculator online for this, but I haven't been able to find any links to it.
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- Kiznik
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