These two pictures show how it covers the algae. My camera is not very good, so this is the best I could do.

Also feel free to E-mail me at steve_wilsonii@fishpalace.org

The black slime trailing off of the leaves in this picture is the same thing as in the above picture. This plant gets more light then the other one. Anyone know what this is. I first thought Cyanobacteria, but it lacks the obscene smell.