Mayfly Nymphs

Lakes, ponds, wetlands.
Have three tails, nymphs have gills.
Freshwater, streams, and rivers.
fish, frogs, birds, flies, or water beetles.
Algae, some mayfly nymphs species have adaptations for eat small food particles. Some other mayfly species can be carnivores, and eat other aquatic insects.
The Mayfly has four stages. Egg, nymph, subimago, and imago.