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post #43 of (permalink) Old 05-05-2019, 10:23 PM
Phil Edwards
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I've used kitty litter for my personal tanks and for research in the past with success. Aside from any chemical properties it may have, it's excellent for reducing compaction when mixed with soil or fine grained sand, such as pool filter stuff. I recommend an 80/20 mix of soil/litter capped with an inch and a half of litter or a 50/50 sand/litter mix. Make sure you're getting calcined clay for the reasons Roy mentioned above.
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