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· SoCal Reefer
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Discussion Starter · #1 ·
hello everyone, can i use crushed marble as a substitute for sand? i been told that since it contains calcium it would be a very good substitute. the packaging claims to be 99% free of silica. should i use this??? if so how deep of a bed do i want? the size on it appears to be slightly larger than sugar varieties. i will include pics later of the packaging. thanks-
 
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