Quote:
Originally posted by Lance M.
Dry base rock won't cause a cycle since there's nothing on it to decay and produce NH3.
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Absolutely correct, provided it's really dry. I know of a LFS that sells base rock that they've pulled out of tanks they maintain for customers, bleach out and sell as dead base rock. The pieces sometimes have a faint bleach smell, and aren't 100% dry. So the moral here is make sure it's dead and dry and you'll be just fine. The guys at this store would give me pieces of this rock for next to nothing, and I would just soak it in fw for a while, and really dry it, or break it up for frag mounts. The slate tiles at about 9 cents each and nice uniform size turned out to be much less work.