05-29-2009, 06:33 AM
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Originally Posted by whitedevil
I got a freshwater tank, and use playsand
marine sand from caribsea is inert, it doesnt buffer at all. it cant/wont do anything to the water at all. Ive tested it, had an LFS test it, the sand is 100% inert.
1) The aquarium up for discussion on this thread is a marine aquarium.
2) This discussion has nothing to do with the type of sand. It is a discussion of the depth of the sand.
3) Marine systems rarely rely on the substrate to provide the buffering. A testing routine and dosing of supplements should be utilized to provide for correct pH, alkalinity, calcium, and magnesium levels. So long as the substrate is not working against us, we are fine.