"Elaine T" wrote in message
m...
Betcha you've heard that question before...but I did read the FAQ.
Unfortunately, I still have green water and I thought I'd done
everything natural to cure it. I've finally got 75% of the surface of
my 3 barrels shaded with water hyacinth, water lettuce, and duckweed.

IMHO - you have done what needs to be done for clear water and only need to
wait for the "algae bloom" to die off from starvation (sounds good, but I
know it is difficult!) A bacteria additive also helps as it boosts the level
of bacteria in your pond - I use it on a regular basis as it also eats up
the mulm (sludge) and dead plant material in the bottom of my pond - my pond
goes clear within 3 days of firing up my 45 gal bio filter with no surface
coverage yet (open water)
Gale :~)