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Old 04-05-2005, 03:04 PM   #1
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refugium substrate?

i have crushed puca shell substrate left over from adding to my 90 gal....can i use this for my main or base substrate...i know its not live but i think i might have it seeded with some that is...and i will definately be filling it with LR. i just want to save some $$$ and use what i have...also is this to coarse of grain for like clams or plants?

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Old 04-05-2005, 03:20 PM   #2
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Most will say to use the finest sand that you can get usually of an argonite makeup. Shells and other jagged material is not good for sand sifters nor does it have the added surface area for bacteria to develop.

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Old 04-05-2005, 05:20 PM   #3
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As long as it is aragonite based it will be fine. Jagged edges in silica sand is not the same as shells. etc. I used sand and rubble rock in my fuge.
*180 gal Display, 100 gal basement sump, 33 gal refugium, 3x250 MH, 2x160 VHO actinics, zoos, some softies, LPS & lots of acros and other SPS.
*100 gal prop tank plumbed into main system w/ 2x96 PC lights and 1x150 MH,
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refugium, substrate

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