causing the vacuoles inside the algae cells to resonate and break
I vote for ka ka.
What vacuoles are specific to algae, which are a very diverse group of organisms? The only distinctive and almost universal feature I know of in their internal cellular structure, as opposed to simple animals, is the presence of chloroplasts, and these vary greatly among different algae and are found in all photosynthetic tissues throughout the plant kingdom. This device will cause your wallet to resonate and break, and the dealer should throw in a �sucker� t-shirt.
Mudcat Joe says you should send your money to him, instead. He will think good thoughts about your pond and project negative energy upon your algae, and they will all die under the influence of his brain waves. I know it will work, for I have seen him kill an entire 12-pak in a single afternoon of trot-lining.
Lou