Quote:
Originally Posted by Pondboy
It contains a bacterium that kills mosquito larvae….or something like that. It’s used mostly in small koi ponds. Never used it in a bird bath…..
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For what it is worth koi are fancy carp. Many carp in lakes and ponds were purchased as gold fish at pet stores. Kill mosquitoes? With proper care. Proper being no care, the fish keep the insects in balance.