A refugium is a great way to redirect some of the nutrients that would normally feed bryopsis. I have mine on a 24hr light so that it takes in maxium nutrients. Under high light and high flow the Cheata morpha grows great and takes in a lot of organics. But, you know, hair algae is the Devil and will persist with the smallest amount of nutrients available. 
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"Before you criticize someone, walk a mile in his shoes. That way, if he gets angry, he'll be a mile away - and barefoot"...Ben
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