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Old 08-19-2008, 07:03 PM   #11
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Silica in a reef tank will promote diatoms and other algae.
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Old 08-19-2008, 07:11 PM   #12
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You want a 3 to 4 inch substrate. I used all florida LS because i could afford it and its a very natural and uniform look. Remember though just because it states Live Sand wont gaurantee its live at all. You could be buying reef sand thats been stored wrong or to long that will be void of most if not all life.

You could use play type sand and get great results.

And yes your sand bed is one of your best bio filters for converting ammonia and nitrate into harmless nitrgen but if conditions are wrong from amount and or water flow problems or feeding habits and or CUC stock or poor rock placement then your substrate will be your worst fear by collecting what it should be converting.
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Old 08-19-2008, 07:19 PM   #13
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Quote:
Originally Posted by Innovator View Post
My vote is to go dry aragonite by CaribSea, good stuff
This is what I would go with also. Dry sand and seed it with a cup or two of live sand from your LFS.
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Old 08-19-2008, 07:23 PM   #14
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A little info on silicates and diatom blooms.
http://www.agu.org/pubs/crossref/200...GB002018.shtml
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Old 08-19-2008, 09:09 PM   #15
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Silica in a reef tank will promote diatoms and other algae.
Sand is silica and does promote diatoms. The glass of our tanks is silica based.

"Coral reefs located near areas of river mouths or extensive areas of runoff often are surrounded by silica sands . . ." How Sandbeds REALLY Work by Ronald L. Shimek, Ph.D and the Silica SAND article by Rob Toonen
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Old 08-19-2008, 10:12 PM   #16
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Let me say it this way. The more you have present in your tank the more chance for an algae out break. Also the silica sand is edgy and is harder on sand sifting animals.

Nice reads Cmor!
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Old 08-19-2008, 11:16 PM   #17
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I agree rev, diatoms' outer cell wall is silicate based and with light and silicates can and will bloom. I'm not really sure if this smaller amount can/will effect constant blooms (possibly if you have silicate based sand and replace the light bulbs, you may get another bloom).
The stuff I read was talking about diatom blooms in the ocean, so there may be a difference in quantity of silicate in mass quantities in the ocean versus in our tanks....
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Old 08-20-2008, 04:49 PM   #18
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For a DSB the silica is much sharper edged than aragonite. Not being able to get Caribbean play sand anymore is a downer. Glad I got mine when I did. I just wished I bought more and stockpiled it.
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Old 08-20-2008, 05:10 PM   #19
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Any opinion on turning dry sand to live with a detrivore kit?

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Old 08-20-2008, 07:43 PM   #20
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The fauna within doesn't necessarily make the sandbed "live," just the culturing bacteria and I never see the point of those detrivore kits unless you purchased cured instead of uncured live rock. I've always noticed that mysids are rather sensitive and will perish quickly if not acclimated carefully, but in the right environment (nutrient dense refugium) they can and will reproduce quite readily. Everything else comes with live rock so the only potentially worthwhile animals are the Stomatella, Strombus, or nerite grazers from either kits. Oh, and I've found that the micro hermits fight like cats and dogs regardless of accessible shells and WILL attack snails and corals if given the chance. Like anything else, if it is in their path and given the availability, it is fair game
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