On Sun, 1 Apr 2007 10:11:15 CST, "drsolo" wrote:

a caution. bacteria like ridX are usually of the anaerobic kind, that is
they crank out some quite toxic compounds in teh process of breaking
organics down. really good aeration and flow of water thru the pond can
keep mulm to a minimum. this is now my 7th year of the pond and I can still
see the folds on the bottom of my pond (also the pea gravel they sucked out
of the lily pots). the mulm from my pond ends up in the veggie filter where
I clean it out once a year in fall.

Yes, I knew there was a caution about RidX, but couldn't pull it from
memory at the time. In our aerobic environments it shouldn't work, and if
it does, one doesn't have enough air in their pond.

I also think the mulm problem has declined since I started feeding really
high quality koi food. Ingrid

Agreed, and I also think it helps that as koi get bigger they help push mum
towards bottom drains and/or pumps in the pond. ~ jan
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Zone 7a, SE Washington State