5% bleach

	Although a little drastic, I highly recommend Paul Kromholtz's 
bleach treatment. Many, many if not most plants recover quickly and as
Paul says, the algae is gone. Until I found SAEs two years ago, I used it
to get rid of red alga (much easier than the copper treatment). When Paul
says 5%, he means 1 part bleach to 19 parts of water. The terminology 
can be a bit confusing because household bleach is labeled as 5% Sodium