Usually don't but I've been target feeding a specific fish so I do turn off the return, not the powerheads though but I find with the return being at the top of the water column the food just moves too fast for him. If he was ok, it would be business as usual and all pumps on.
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Christy's Reef Blog
My 180 Build
Every electronic component is shipped with smoke stored deep inside.... only a real genius can find a way to set it free.
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