For what it's worth - I don't even rinse Flourite or Onyx when I use
it initially in a setup. After laying down the substrate, fill the
tank very slowly and lay the incoming outflow on a plate or similar. I
proceed to begin planting when the setup is about half-full.

When complete, a filter with strong mechanical filtration media is
turned on, and within a couple days, the system is quite clear.

Erik Leung
r rotundifolia green! - http://www.e-aquaria.com/notes/011603.html


Eric Schreiber wrote in message . ..
"Dave M. Picklyk" wrote:

What's better? Lacerite or Flourite? I heard that Lacerite is cheaper and
you only have to use it on the bottom 1/3 of your normal aquarium gravel
while Flourite is more expensive and must be used throughout the entire
substrate??

Flourite is definitely easier, and (properly rinsed) it won't cloud up
your tank.