Do-It-Yourself Household Pests Killing Solutions!
Phillip 
The good news is that most fish will eat mosquito larvae or wrigglers.
But a homeowner, gardener or aquarium owner who wants to stock their pond or tank with fish that will eat these pests but leave tadpoles alone have several options.
This article discusses seven fish that eat mosquitoes while not necessary bothering the tadpoles, but first:
Lemon juice being as though this is an all-natural product that is cheap and easily found on any store’s shelves, many people tend to gravitate toward its use as a mosquito repellant.
The reason that people were given the idea that lemon juice would work so well?
Well, manufactured repellents list “lemon” in their ingredients.
However, as a consumer, you should be more diligent in your reading and see that what they actually contain is “lemon eucalyptus” or “lemongrass oil”, neither of which are lemon juice.
Just because the citronella candle that wards off bugs from your outdoor dining table smells lemony, does not mean it is made with lemon juice.