Sitter och läser till en tenta i mikrobiologi och i boken får man då ett tips om hur man blir av med alger i ett akvarium. Författaren skriver:
"If you have an aquarium, you probably have contended with water that looks like pea soup because of the large number of algae growing in it. This problem can be coreccted by placing a few pennies in the tank. Enough copper to inhibit algal growth dissolves from the pennies into the water. For this small investment, you can greatly increase visibility and enjoyment of your fish" (Microbiology - principles an explorations, Jacquelyn G Black)
Men vad säger fiskarna om koppar i vattnet?
Någon som har en åsikt om detta?
Nille
"If you have an aquarium, you probably have contended with water that looks like pea soup because of the large number of algae growing in it. This problem can be coreccted by placing a few pennies in the tank. Enough copper to inhibit algal growth dissolves from the pennies into the water. For this small investment, you can greatly increase visibility and enjoyment of your fish" (Microbiology - principles an explorations, Jacquelyn G Black)
Men vad säger fiskarna om koppar i vattnet?
Någon som har en åsikt om detta?
Nille
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