When I stocked my pond with trout I figured they would would eat mosquitoes larvae than my wife decided to inform me that trout wouldn't eat the larva's, my grand daughter said the same thing. They ain't here to ask so I looked it up since I couldn't remember the fish that did eat them. My problem is these fish are too small and the trout would have a field day, I have a lot of bats but unfortunately the bats are reactive to my problem and not enough bats to make a dent same with the dragonflies.
Known fish that eat mosquitoes larvae "goldfish, mosquito fish, minnows, koi and guppies"