How do you care for tadpoles?

I have been given frog spawn but dont have a pool. I initially thought I would put a recycling bin in the ground with some aquatic plants but my partner said I should put them in my wishing well . If I do should I clean it out and can I use tapwater to refill it. How do I keep it from being stagnent. Do I buy aqautic plants to aeriate the water and feed them when they become tadpoles or use fish food.
Would a recycling bin buried in the soil be a big enough enviroment.
Any help would be lovely. Im sure there are some of you out there thinking frogs manage without any help from man but I just want to give them the best start possible.
PS There is no downside to doing this is there?