04-25-2012, 08:44 AM
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black sand questions
The ad says it absorbs ammonia; is there any way to "recharge" the black sand, I.e. get rid of the ammonia it sucked up, so I can reuse it? Or does it stay stuck?
Do I have to replace it regularly, or is it ok to just leave it as is, sans ammonia sucking properties?
What is it exactly? It absorbs ammonia, balances ph, so I'm guessing it's some sort of zeolite/fluorite.
Finally: the stock I saw didn't look al that new; does the ammonia absorbing/ ph balancing properties fade out over time?