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Old 07-01-2011, 12:46 PM   #1
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Deep sand bed

I'm just starting a 39 gallon aquarium. It's completely empty, how many inches of sand do I need for a DSB. The tank is 24"L X 20"W. I was planning on using 40lbs of sand to have a 2" bed. Is this deep enough? Thanks
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Old 07-01-2011, 12:55 PM   #2
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Dsb are usually 4" and above.
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Old 07-01-2011, 01:16 PM   #3
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I don't think the 1 pound a gallon thing works with sand. I used two 3 gallon bucket fulls to achieve a 2-3inch substrate in my 29 and the bucket didn't weight 15 pounds each.
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Old 07-01-2011, 01:21 PM   #4
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Quote:
Originally Posted by slitherbomb
Dsb are usually 4" and above.
Thanks. Do most people have a Dsb?
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Old 07-01-2011, 01:22 PM   #5
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Usually 1 pound a gallon gets you 1-2 inches of sand. For a dsb it's 2 pounds or more per gallon. Also, maybe it didn't feel like it weighed 15 pounds because that is light and you are strong lol (not kidding)
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Old 07-01-2011, 01:22 PM   #6
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Out of all my tanks only 1 has it. I think it's not as popular yet as a regular sandbed.
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Old 07-01-2011, 01:24 PM   #7
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Quote:
Originally Posted by Stevew8828

Thanks. Do most people have a Dsb?
A lot of people say they cause problems. I don't think that's true. The only thing is that you need creatures that dig in the sand that have it turned over a couple of times a week. You could get a sand shifting star, a horseshoe crab(not recommended), some nassarius snails or even a diamond watchman goby. You need these so that the gases trapped in the sand get released. And I'm not sure if people do. I do though, and I think it looks nice with a dsb.
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Old 07-01-2011, 04:18 PM   #8
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there is only one problem a DSB does wrong and thats if you disturb it while its still i nthe process of establishing itself. if organic matter gets under the sand before the life has built itself, the organics will decompose and creat toxic gases that will poison and whip out your entire system.

if done properly a DSB mixed with a refugium and live rock will be the best filtration system you could use in a reef, as it will be the most natural. PWC to remove nitrates and organics will not be needed unless to reestablish used up trace elements
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