My pond is really set up for tadpoles and frogs and not predators like bass etc that would soon eat the tadpoles. So I have tadpoles in the thousands until the winter kill. The tadpoles remind me of the commercial you use to see on TV of the little scrub brush cartoons in the toilet boll cleaning like crazy. The tadpoles are all over everything in the water eating algae. Along with plants and only minnows for my fish including Golden Shiners that some believe eat some FA I am usually free of algae.