Quote:
Originally Posted by Myka
6-7x turnover is ideal. Keep in mind the purpose of the return pump is to feed the skimmer (in the sump), not to provide flow for the tank.
I have a Poseidon PS3 on my 90, and it is a good match. I'm replacing this tank with one that is about 100 gallons, and I will continue to use the PS3. They are great pumps and deadly silent. These pumps are now called Blueline Velocity T3. If you want an internal pump though, I would recommend the Eheim 1262 or the Eheim Compact 3000 (or maybe the 4000? I don't have time to do the math for you) if you want a cheaper model.
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Quote:
Originally Posted by Myka
Flow through the sump has nothing to do with what type of corals are kept. As I said above, the purpose of the return pump is to feed the skimmer water to process. The skimmer can only process so much water, so increasing flow through the sump does no good. If you have a grossly over-sized skimmer then increasing the flow through the sump could possibly achieve a bit heavier skimming, but that would be negligible.
Powerheads are for provide flow for the corals and preventing detritus settling. For SPS corals you're looking in the 50-100x turnover range where LPS and softies are happy with 10-25x turnover.
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Thanks for the input Mindy,
That will be next poll (Skimmer)
Looks like the 4000 will do the job based in RC calculator.
As for your second post, are you saying that for a 90 gallon SPS tank that a person should be looking for 4500 to 9000 GPH turnover ? If so looks like I need a couple of more powerheads.
