Naturallly cleaned "pool" -- water is pulled from the bottom of the main pool and filters out through pipes under the planted edge. The plants feed on the nutrients in the water and clean water flows back into the pond. I've done this with every pond i have ever built. The movement discourages mosquito larva, and once it is naturalized the dragonfly larva and beetles eat the rest.
A dragonfly larva emerges from the water with four distinctive lumps on its back. These lumps will turn into the most powerful wings in the insect kingdom. Watch the transformation unfold before your eyes.
Another fact is that adult dragonflies will devour just about anything they can catch. Dragonflies usually eat mosquitoes, bees, gnats, butterflies, termites, and other bugs. When they are in the nymph stage, they eat small fish, tadpoles, mosquito larvae, worms, and aquatic insects.
Ponds aren't just great for frogs. They're also fab for beasties like this Emperor dragonfly larvae too. Dragonfly larva, or nymphs, turn all sorts of underwater creatures into tasty treats - many that are much larger than them! #homesfornature