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Old 10-11-2004, 03:03 PM   #1
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Sand Bed Depth Advice 20G Long

I am planning on getting oolitic aragonite .25-.5 grain size. I read that this sort of susbstrate has denitrifying properties. My tank is a 20G long.

what depth should I go for? 1" 1.5" 2" ???

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Old 10-11-2004, 05:07 PM   #2
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with sand beds, the more the merrier- i would go with around 2+ inches, to maximize denitrifying capibilites.
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Old 10-11-2004, 05:18 PM   #3
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In a 20 your would loose too much water volume to try a proper DSB. I would just go with an inch or so and reply on other means to reduce nitrates.
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Old 10-11-2004, 05:28 PM   #4
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I agree with QS on this. In a small tank a DSB has no beneficial use from what I have read.
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Old 10-11-2004, 07:58 PM   #5
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You'd lose half the tank if you went with a DSB

An inch or less is what I'd go with too.
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Old 10-11-2004, 09:16 PM   #6
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Agree with the above on nixing the DSB. Use are refugium for nitrate control.
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