I turn my vortechs down to 10% for half hr during feed mode and not completely off, the food blows around for 1/2 hr and uneaten food hits the sump to be skimmed out or the crabs find it.
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Always looking for the next best coral...
90g starphire cube/400mhRadium20k/2 XHO/2x27w UV/2x39w T5/ 3 Trulumen led strips
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