Adding caribsea life rock to established aquarium

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ca1ore

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I added life rock to an existing tank on a couple of occasions, though I already had a lot of rock in the tank. It's pretty dense concrete, so not sure how much it would help the biofilter; but it will work fine as hiding places.
 
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Dave1993

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Why would it create another cycle? When it comes to dry rock, usually you just rinse it really good to get all the dust/debris off it and put it in the tank.
makes sense but pretty sure i read somewhere if you add dry rock it can cause a mini cycle
 
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