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#1
01-08-2015, 03:31 AM
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Funny you post this Brad as I have had the exact same concern lately.
My tank has been up for a year now and i have been running two mp10's at 80% in reef crest mode for the last 6 months. The growth of my sps frags has been moderate to high but mostly encrusting and not in height. Lately i have read a few post on various forums that some reefers have been adjusting from this mode to lagoon mode and dropping there pumps back to 50% with no ill effects and some are stating better growth results in just a few short months. So last week i changed to lagoon mode and also lowered both my mp10's to 50%, in the short 6 days i have not witnessed any negative effects to polyp expansion and the fish seem to be more active as well. Time will tell I guess 
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cheers, Rich all that we do is touched with ocean, yet we remain on the shore of what we know http://www.advancedaquarist.com/2005/5/aquarium 
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#2
01-08-2015, 03:35 AM
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Rich, yes, with stronger flow I find they encrust more, and grow in girth before height to build strength to withstand the force of the water. Without this force, they tend to grow up more, but thinner and less dense skeletal structure.
Perfect example is buying a wild A. humilis colony, with short stubby branches. Once placed in a tank with less than strong flow, the branches taper and grow longer.
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Brad
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Hybrid Mode
