The "Latest and Greatest" in the bead type media is something called
Kaldnes. To get the maximum out of it, you need to install hefty airstones,
manifolds, or the type of air hose used in sewage treatment plants to "roil"
the media with air. It becomes self-stripping, self-renewing, and adds a lot
of oxygen to the water. It's designed to be used in open containers, not
pressurized filters.

Lee

"Drew Cutter" wrote in message
...
Suggestion on where to get the best floating beads ?