"Lee Brouillet" wrote in message ...
Sue: Yes, the waterfall adds oxygen to the pond, depending on the drop.
If you have a drop of 18" or so, you may be OK.

Actually, the waterfall is two tiered from the head pool into the
stream with each drop about 9", then it travels the lenght of the
stream 22', then it drops into the pond about 12". How big of an
airstone are you talking, in the barrel all I had was a walnut sized
one. Where do you get bigger ones? What type(size?) of air pump do
you need to run the size you are recommending?


I'd place the airstone about 2/3 of the way from the waterfall: the airstone
will ensure that the far end of the pond also is properly aerated.

I have a water spouting crane which leaks so badly that it can't be
used. It is at that 2/3 locations that you referred to. I put it
there to make sure water moved all around the pond, no dead spots. If
I can get it fixed would that do the job for the extra oxygen?


Your "brown algae" doesn't "quite" sound normal. New ponds usually grow nice
green stuff, not brown stuff. Especially brown stuff that breaks loose and
clogs the filter.

It's like loose silt, really doesn't look like algae...


Do you have any Koi Clay?

No, on the Koi Clay. Where do we get it around here? Tampa, Hernando
or Pasco county or on the internet?


replace your skimmer mat with a lingerie bag stuffed with netting, the kind
you use for crafts (like coarse bridal veil).

This I can do easily.


If you've got what I think you have (cyanobacteria), it will be an on-going
effort until the water cools again. It works in cycles; I'm on my third
since Spring.

cyanobacteria?? I"ll have to look that up as I've never heard of that
one, but that's par for the course, remember when I first filled the
pond back in January I had red algae. Drained and redug it since then
and glad it didn't appear when we refilled in May.


Thanks Lee for all the good info...Sue W