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Old 01-05-2005, 07:50 PM   #1
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Sand for a DSB?

I have CaribSea Seaflor for a substrate and would like to switch to a DSB. I'm having trouble locating the Southdown sand, but I have access to some sand like is used on golf courses. It seems to be a fine texture and would look great in the tank. I can find out what is actually in the sand but I had a question. What ingredients are not desirable?
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Old 01-05-2005, 08:56 PM   #2
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silaca sand is not desirable. It has no buffering capacity and also it has jagged edges that deter some organisms that live in the sand.
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Old 01-05-2005, 10:42 PM   #3
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If I can't find the Southdown sand, what are my other options without paying an arm and a leg. TIA
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90 gal running since Jan 2003
50lbs LR
3" CaribSea Seaflor substrate
DIY oak stand and canopy
Equipment=> 260w Coralife pc retro, CPR Bakpak II, Emperor 400 (bio-wheels, bio-stars), Penguin 330 (bio-wheels, lava rock filter media in baskets), 2-Powersweep 226 powerheads, Proquatics 300w heater
Livestock=> maroon clown, blue damsel w/ yellow dorsal, green brittle star, 3 mex turbo snails, assorted mushrooms
Future plans=> SSB, sump/refuge, more LR, more corals
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Old 01-07-2005, 12:34 AM   #4
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Yardright or Old Castle are the same as Southdown. Any tropical playsand should be fine. Silica sand is fine if that's all you can get. It just doesn't buffer. However from some research into that subject it seems to me that buffering from the substrate is an 'urban legend'. That is because your water would need to turn acidic before the sand would break down. It does not do this at normal pH levels.
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Old 01-07-2005, 10:02 PM   #5
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Thanks for the info. If I can only get the silica sand is there any other things that I need to make sure is not in the sand mix? I believe I read something about feldspar but I'm not sure.

Stephen
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Old 01-08-2005, 02:04 PM   #6
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If it is silica, just be sure it is "child safe". Many silica type sands used in construction and the like will contain other contaminates. Sand sold for use in sandbox's for children is 100% silica and safe for use in your aquarium.

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Old 01-08-2005, 03:57 PM   #7
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Thanks, that answers my question.

Stephen
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