"Nemo" wrote:

I picked up two bags of fluorite for my 25G. The instructions on the bag say
rinse before use to wash off the dust. Well I rinsed for over an hour in a
22L bucket and the water is still brown.

In addition to what Chuck said, bottom line with Flourite is that it's
very dusty stuff, and almost impossible to rinse completely clean.
Give it a couple of solid rinsings, then tank it. It'll cloud your
water some at first, but that will all settle out within a day or two.

It just bees that way


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