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Old 01-16-2005, 06:42 AM   #1
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Playsand question

if you use this do you need a dsb or no?

[edit by BillyZ]i've created your own thread with your questions as it seems you have a couple questions on this subject[/edit]
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Old 01-17-2005, 02:07 PM   #2
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you use this sand to create your DSB. It is dry sand that can be seeded with either just your LR or with some suplimental LS from your LFS. The tropical play sand very quickly becomes LS with the bacteria and critters from the LR(or LS from LFS)
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Old 01-18-2005, 08:46 AM   #3
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But what im saying is do you have to make a DSB if you use this sand? Also what are the benefits of a DSB and is it better then CaribSea crushed aragonite?
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Old 01-18-2005, 12:47 PM   #4
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I'm not sure if I understand your question exactly.

Sand is a type of substrate. Wether you pay $20 for a 20 pound bag of CaribSea sand or $3 for a 50 pound bag of argonite play sand is only a difference in price (a considerable difference)
Crushed Coral is another type of substrate.

a Deep Sand Bed is a "technique" of sorts that uses several inches of sand substrate. The benifits of which are that of natural filtration for your tank. A DSB is just a term used to describe the sand in the bottom of your tank. It is usually 4-6" of sand and is populated by worms and critters of all sorts as well as plentiful amounts of bacteria. The exact type of sand you use to create a DSB should be a calcium based argonite sand. The playsand most use is OldCastle/Yardright/Southdown playsand and is calcium based.


Does that help at all?
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Old 01-18-2005, 03:04 PM   #5
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Just to add to this discussion. A SSB is usually1 to 3 inches in depth and does not give the nitrate reduction benefit of a DSB.

CC needs to be vacuumed to clean it. Sand beds are usually cleaned by critters.
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Old 01-18-2005, 06:41 PM   #6
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are there any down sides to a deep sand bed?

i was told that if it is undisturbed it can produce dangerous gasses which can wipe out your tank overnight?

i was thinking of using a shallow sand bed with magic mud in a refugium and live rock rubble as a trickle filter.

what do you think?
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Old 01-18-2005, 08:55 PM   #7
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K i'll admit it im a newbie, and i need help lol. K DSB is just a term used for how high ur sand bed is and doesnt have anything to do with the type or size of the sand? Cause from what i understood was that u needed a finer grade sand for a dsb; ex: HD tropical playsand, instead of using caribsea crushed aragonite. I guess here are my questions if anyone can help...

1.) Can you only use a smaller grain sand for a DSB? or do people also use caribsea crushed aragonite for a DSB?
2.) If i were to use tropical play sand and made a DSB of 4-6in, what is the difference then if i were to use caribsea crushed aragonite? which is a little bigger and is in most marine tanks i see around here, which is why im skeptical about using the tropical playsand.
3.) Also I hear you can't use any sandsifters if you have a DSB.... is this true and if so what would this limit me on as far as livestock and such?
4.)if a DSB is the way to go why do most tanks i see have the caribsea?
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Old 01-18-2005, 09:16 PM   #8
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Oh and another question is caribsea CC? cuz you keep saying DSB is better then CC but when i compare CC to caribsea at my lfs the CC is way bigger and has shells and other stuff in it where the caribsea is a lot smaller and doesnt have any shells in it.
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Old 01-18-2005, 10:32 PM   #9
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The smaller grained sand is needed to reduce oxygen for the process of eliminating the nitrates. The difference between the two is a DSB will eliminate nitrates and a CC substrate will add nitrates(unless vacuumed regularly). You can have sand sifters in a deep sand bed but depending on the type you will lose most of the life in it(worms etc). Some sand sifters only stay in the upper portion of the substrate. CC comes in different size particles but if you want the proper nitrate removal you need the fine sand.
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Old 01-19-2005, 09:32 AM   #10
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hi, i too don't know which way to go on this.

i want to reduce the nitrate levels however i am really concerned about the dangerous gasses building up in a deep sand bed. th DSB also takes up a considerable portion or your tank water, surely this has a detrimental effect?

any ideas?

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