Red Residue in a Pond
How-Dee from Montana,
I have a small 4x8 foot concrete pond. Plants and gold fish live and
thrive in this pond all summer. During the winter, I let the freeze
over. The pond plants and fish survive in the bottom, which dosen't
freeze. Green algae forms in the pond. Last fall, I noticed a redish
color on the upper sides of the concrete. This spring I found all of the
gold fish frozen in the ice. After draining the pond, I noticed dried-up
redish gunk on the pond sides.............
Could this be a killer type of a red algae? Help.
Different sorts of info. Possibly helpful:
You might want to check with your local agricultural extension office.
Anthony R. Brach, Ph.D.
Click here to return to the Botany Archives
Update: June 2012