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- Nov 28, 2013
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Hey guys I'm just starting out with salt water aquariums. I don't know much about them but have always wanted to try it. I bought a 90 gal and have it set up as a sump tank below. I purchased a few small libe rock but was wondering if I could use some rock that was given to me with the tank? I was thinking of making a rockscape later tonight and putting it in my tank would this be ok or would the used rock cause me problems. Thanks.