Thats how I am gona run my sump, Drew. Mag 1800, little to much for a 15g sump, so I'll split the drain to the sump to both ends. Regulated flow fro sump, then the rest dumps near the pump to be returned to the tank without going through the sump.
Not sure how its gona work yet, but should be fine as long as I get the baffles in the sump right
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