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Old 03-24-2005, 07:18 PM   #1
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deep Sand base

who deep is a deep sand base?
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Old 03-24-2005, 07:38 PM   #2
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i consider a DSB to be 4 inches, but i have roughly 3 inches.
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Old 03-24-2005, 09:09 PM   #3
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I think 4-6" is the definition of "DSB"
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Old 03-24-2005, 10:36 PM   #4
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as copi said 4-6 inches. the purpose of a DSB is to remove nitrates from the system. that depth will be needed to get the anaerobic conditions needed for denitrification.
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Old 03-24-2005, 10:43 PM   #5
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Agreed. A minimum of 3" needed for decent denitrification. Anything over 7" is overkill.
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Old 03-25-2005, 04:12 AM   #6
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i have 2 inches min. in my 20 gallon... Am i supposed to mix up the sand to oxygenate it every so often??
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Old 03-25-2005, 08:18 AM   #7
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with a 2 in sand bed you are not getting the conditions needed for denitrification(lack of oxygen). with that being said oxygenating the sand bed wont hinder the process since the bed is not deep enough to house the proper beneficial denitrifying bacteria.
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40lbs livesand(bag from LFS), 30lbs live rock(LR.com)
2 O. Clowns
1 peppermint shrimp, 5 red leg hermit crabs,
4 mexican turbo snails, 15 nassarius snails
ricordea mushroom, candy cane coral,
super color polyps, hairy mushrooms
bubble coral, hawiian feather duster
coralife lunar 2x65, HOT magnum canister
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Old 03-26-2005, 11:05 AM   #8
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Does the sand have to be live sand from the LFS to work, or will the standard dry caribsea sand "become" live sand? Can I put down 1" or 2" of the dry stuff then 1 or 2 of the live sand?
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Old 03-26-2005, 11:40 AM   #9
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Quote:
Originally Posted by billburroughs
Does the sand have to be live sand from the LFS to work, or will the standard dry caribsea sand "become" live sand? Can I put down 1" or 2" of the dry stuff then 1 or 2 of the live sand?
Dry sand will become live sand. Critters from the LR will make their way to the sandbed and populate it over time. Putting down a few inches of dry sand and adding an inch of live sand on type is fine. If the live sand from your LFS has critters in it then go for it, if not just use dry sand and add some nice fresh LR.
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Old 03-26-2005, 12:16 PM   #10
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What about a Mud system..? What I've heard is that a DSB is not needed and might even cause problems if you use it with mud. Is this true?

I was thinking of doing an EcoSystem with mud and a 1 - 2" sand bed. Thoughts?
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