Yea sure ill give you all of the tadpoles if you wish. They are easy to raise. Out of about 200 tadpoles you should be able to get about 75 or so to turn into froggies.....I would release them ASAP so they can learn to hunt on their own. Id keep about 12, out of those 2-3 will be males. I hope you dont get cats in the yard....they are take a heavy toll on the frogs.

What part of the city do you live?...I lived in the Excelsior, there was alot of Frogs,salamanders,Garter Snakes ect in my yard all the time.