Cool! I remember raising tadpoles when we were kids.
How do you get tadpoles without getting mosquito larva though?

Tadpoles are from frog eggs, wiggletailes are what we called mosquito larva.
The tadpoles in our pool (when we had it) turned into tree frogs.

I do have mosquito larva, Christie. I put in mosquito dunks but it doesn't kill them. Somehow they don't finish maturing but I don't like seeing them and hope it really is killing them. I have a shallow well and a huge run off from my house when it rains because of the shape of the roof. I also have the barn roof. Siphoning isn't as easy as water under pressure because I am always moving the hose. The little frogs are cute and what was really cute was seeing it eat a tiny tiny flying insect.

Helen, I noticed we have a stock tank full of tadpoles too. Don't know what kind of frogs yet.

I need to check a couple of tubs I have under the shed roof. They may be filled with larvae. The dog jumps up and drinks out of it, so I just leave it be.

I'm going to buy some mosquito dunks then and put out a tub of water for the frogs. What I see the most around here are little tree frogs (I think) less than two inches long. They like the window in my laudry room. There's no curtain on it and they wait for moths there.
The view from inside the house: