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booc 10/17/2004 10:12 PM

Black crushed coral
 
I wouls like to use a black substrate in my fish only tank. My local fish store has a fine black gravel, but warned me that it is not a PH buffering substrate like crushed coral. Does anyone know if black crushed coral or another substrate that is PH buffering is available ? Is this even an issue(using non buffering gravel as a substrate?
Thanks in advance for your help!!:)

mordibv 10/17/2004 11:46 PM

There is a variety of sand known as Fiji black sand .I think it is composed of araganite and volcanic rock .. ..Caribsea Tropical Isle Tahitian Moon doesn't affect ph so I apt to guess it has no real buffering capacity . If you are changing water on a good schedule that should help with buffering ..check it out via [url]www.caribsea.com[/url]


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