I have size constraints and other things I would like to buy (like a Gyre) to help with the surface scum. I was thinking around $400-$500 for the return pump, if a controllable DC return pump will be guaranteed to rid me of the surface slime, without exceeding my sump capacity, I would have an extra $400-$600.
I don't care for it to be a DC pump to be honest, just need something quiet and powerful. I only mentioned controllable by Neptune to eliminate pumps that are not compatible.
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