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Must be something to do with the low power, I think they all take less then 10w. Do the nozzles help with the direction? my tank is 2' high, so it would have to move down 18" before it hits the sand, hopefully it will at least lessen the stirring effect on the sand.
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120 Gal SW, 150lbs Prem. Fiji, 23Gal Sump, 2x250w 15K MH, 4x65w Actinic
3 x Halichoeres Chrysus (1 surfed), 3 x Nemateleotris magnifica, 1 x Centropyge bicolor, 11 x Scarlet Hermits, 6 x Zebra Hermits, 40 x Astrea Snails, 6 x Nassarius Snails, 3 x Cerith Snails
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