Cleaning concrete pond edges without affecting fish?
"scorpster" wrote in
:
We have a concrete pond with fish, and the concrete liner that is
exposed to the air has some black algae stains from when the water
level used to be higher. The new permanent water level is below the
stain. What would be the easiest way to clean the dried black algae
without killing the fish? For example bleach would be great for
cleaning a white surface, except I think that would kill everything.
Pressure washer.
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