My short answer would be no. 60 lbs of LR is not enough to sustain the mandarin. I have a 125 w/ 220+lbs of Live rock and I still rotate a couple of pounds of LR from the rugium to the main tank just to make sure it always has something in the main tank. In a 40 w/ 60 lbs of LR the mandarin will decimate your pod population. Remember these guys look for food ALL DAY long. They only stop when the lights got out!
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How many licks DOES it take to get to the center of a bubble algae?!?!
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