Two years ago I had so many tadpoles coming to the top of the water and diving to the bottom that it looked like rain drops all over the pond. I haven't seen nearly that kind of action since. I do have lots of frogs because I have a very vegetated pond. I thought the reason for this might be that the tadpoles were close to changing into frogs and so they were going from getting their oxygen from water to oxygen from the air.
My pond looks like this today all around the edges.....I have never seen anything like it. Thought for a second it was rain drops.
