Ditto from me. Per suggestion from jan, I'd like to explore options to my
200 lbs of lava rock (in 4 mesh bags). My filter/falls already has 3 2"
green filter pads suspended above the filter/falls bottom that the water
passes through before going through the rock and a bag of bio balls and then
back into the pond. Before getting into ponds in 1998, all of my experience
was with aquariums. I've always looked at filter pads as a mechanical filter
and still needing the bio medium to "eat" the ammonia.

JB 3,000 gallons


"Joe" wrote in message
...
I was intrigued by the brief discussion about Matala. I went to their web
site and must admit to being a tad confused.

Is this a product I can use in my skimmer, starting with a sheet of more
porous black Matala followed by green or blue? The water would go through
the black and then the blue.

In my waterfall filter box, since it is fed from the bottom I would put
the
sheets of Matala vertically, alternating black, green & blue.

Is water flow really not impeded that much by a full filter?

San Diego Joe
4,000 - 5,000 Gallons.
Koi, Goldfish, and RES named Colombo.