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#11
05-09-2015, 10:16 PM
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Yea I would dial back the return pump,
But yea the water should be over flowing over that last panel so it keeps that level am I looking at it right? Also maybe Ask the previous owner what he did different than your doing
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Current tank---125 gallon mixed reef 60 gallon sump, Reef octopus nw200 skimmer, Rapid LEDs, Maxspec gyre, Mp10s, Fuge, Biweekly 20% WC, QT everything 
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#12
05-10-2015, 04:01 AM
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Dialling back a return pump by 50% is not a good idea. You need a smaller pump or a bigger overflow box.
Ideal flow through the sump for that size tank and sump is about 800-900 gph so you should find a pump close to that range.
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#13
05-10-2015, 04:33 AM
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It wouldn't need to be dialed back anywhere near 50% though. I use the Fluval SP4 on my 93 gallon. After head height loss and loss due to plumbing , 90 degree elbows etc , he is nowhere near 1800gph anymore. If the overflow can handle 1100gph then he's probably pretty close and just needs to dial the pump back a little bit with a ball valve.
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