The Planted Tank Forum - View Single Post - Clay question
Thread: Clay question
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post #3 of (permalink) Old 11-22-2012, 03:33 PM
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1) I would get it analyzed for elements that might be toxic in tank such as Cu(there's a water kit), it's just good practice depending on what you'll be keeping in tank. Just experiment a bit, if your shrimp and snails start dying, it could be the cause (I've actually had this happen to me but I suspect it was from using too many root tabs)

2) How big is your tank? I would use thin, say 1/8", slabs or pellets of it as your "bottom" substrate followed some finer grain, and finally a coarser river gravel or sand, 1:1:2 ratio of clay, fine sand, and coarse river gravel or sand.

3) The clay is also good for nitrogen reducing/fixing bacteria.
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