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Re: Blue-green Algae

<< Why does  the water lettuce that I have in all 4 of my tanks grow blue 
 green algae at the base of the root structure? It doesn't seem to be 
 spreading beyond this small area. >>

Tim, I have had this same problem in the past both with water lettuce, water
hyacinth, and salvinia.  Not sure why it happens, but it's a dickens to clear
up!  Perhaps it's from these plants collecting nitrogen and other "stuff" in
their roots?

Dean Sliger
Deansliger at aol_com