phanman. I purchased close to 100 #'s of live rock 10 months ago and it was full of hair algae. I put it in a 50 gal tub (barely fit) with a heater and small flow pump, no light. I have changed the water about 6 times and that rock is full of life(pods,crabs,snails, worms, etc), except hair algae. People sometimes completely cook LR to rid it of all life so when they add the LR to their systems they are not adding any of the unknowns, seeding it with a trusted live piece.
Good Luck
Pics please.
Kevin
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