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Old 02/09/2018, 04:29 PM   #4
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Join Date: Apr 2016
Location: Central Nebraska
Posts: 2,868
I didn't run through your head loss calculations, but 750gph seems like a lot for a 40breeder.

Folks here seem to recommend about 5-10x display volume to turnover through the sump, so a pump somewhere around 200-400gph after head loss.

If you already have the pump, and your overflow can handle it, it could be fine. I might just worry about it being loud. You can valve down the pressure side of the pump as well.


Current Tank Info: 125 in-wall , 40b sump. 6 bulb T5. ASM G2 skimmer. LPS and leathers
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