First, is there some product out there to kill dried duckweed and/or duckweed
seed that remains in the hair algae that's stuck to the sides of my outdoor
tubs and driftwood? The tubs & driftwood have been outside, but empty over the
winter, but I know just as soon as I fill it with water.
Second, are there good headlamps out that would kind of have a polarized
effect where said headlamp's beam would penetrate the water's surface without
glare or reflection for night viewing?
Thanks in advance for any advice.
Bruce Scott
Meridian, ID
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