A: Yes, you can use the Barley Straw however you would have to break up the bales and lightly cover the seed.
A: No, they are small, they can fit in the palm of your hand
A: I'm not going to answer that one. I love dogs and I would hate to be responsible for giving you the wrong information and have your dog get sick. Its safe for aquatic plants and fish. Call the manufacturer and ask. Its my understanding that the barley straw emits peroxide when soaked in water and that's what kills the algae.
A: Yes, as long as it is used as directed it is safe for all live animals.
A: Safe for fish and aquatic plants
A: This will kill the algae you already and prevent other growth. But, the algae you have will turn a yellow color and it'll have to be fished out of the pond.
A: Yes. It takes about four days before you will notice your current algae bloom to start to turn yellow.
A: Yes, it can help control the growth of algae.
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