The Planted Tank Forum - View Single Post - Best substrate to grow HC, UG & Belem emersed?
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post #2 of (permalink) Old 09-15-2011, 02:05 AM
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Location: Illinois
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Earthworm castings or clay balls (used in terraniums) are good for emersed growth and cheaper. Just need to crush them finer. Check out substrate options in any hydroponics store. Usually they are cheaper but probably cannot be used in tanks with fish and shrimps.
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