On Thu, 10 Jun 2010 19:56:20 EDT, Phyllis and Jim
wrote:

I note that the jelly-like blue/green algae is growing happily on the
rocks of the waterfalls. I haven't thought about why that is there.

Any ideas?

Jim

I can't say. My waterfall gets the chlorinated water when I do a water
change, it also gets little sun, thus little algae grows there. I wonder if
sprinkling koi clay on that type of algae would do the trick? Works on
blanket weed. ~ jan
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Zone 7a, SE Washington State
Ponds: www.jjspond.us