"Elaine T" wrote in message
m...

That sounds like more of what I'm after. I suppose I could do the same
thing with a larger coated gravel and any smaller plant substrate. I
haven't found Onyx around here yet.

So Fluorite/sand or


It is not good to mix sand with larger grained substrates like gravel or
flourite. The two different sizes will seperate with the sand working down
to the bottom and the flourite will "float" to the top of the sand.

--

Margolis
http://web.archive.org/web/200302152...qs/AGQ2FAQ.htm
http://www.unrealtower.org/faq