02-21-2007, 04:25 PM
Join Date: Jul 2006
| | Need this for meeting Sunday
For the demonstration Sunday, does any one have about 1/8 cup or so of crushed coral, oyster shell, or anything similar that can put magnesium and calcium into the water? Probably less than that, we just need to sprinkle a little over the bottom. You usually put a small amount over the soil before you add the gravel.
In a natural planted tank, it helps stabilize pH. That's the only ingredient we haven't accounted for yet for the demonstration. It's not an absolute must, but it is helpful.
Please let us know if you do and can spare a little. It doesn't take much.
My guess is that someone in our group has some lying around.