Rescued a tadpole from a carnival. NEED HELP!

[MissyAmerica]

Hi Everyone!
I made the mistake of going to a fair last week... It was a mistake because I am a sucker for the poor poor animals they give away, and I always end up taking one home! Anyways I have never raised a tad pole or any reptile for that matter, and I am hoping to get some help. I am pretty sure my little guy is a bullfrog but I have no idea what type of BF exactly. If someone could let me know that would be a good start!
When I "won" him, he was in a bowl about 2 times the size of him. Since thn I have purchased a 10 gallon tank. I filled it about half way. put 1 tsp of conditioner in the water, and set him by the window. I live in So Cal in the Valley so it gets HOT. Is this an ok place for him? I also purchased a small floating island because I read online that as he changes he will want to crawl out. It is too small for when he becomes an actual frog so before I take it out of the box, I want to be sure I even need it. I also filled the bottom of the tank with some stones. (more for decor purposes than anything else) Is this ok? I do not have a filter, heater, or lamp, do I need these things? Also, when he does become a frog, is a 10 gallon tank big enough for him? and what modifications will I need to make to it?...Here are some more questions (I am full of them )
When can I expect him to become a frog?
When do I start feeding him live foods?
Do I have to feed him live food?
Even though I do not see him eat the food, is he eating it?
How do I know if he is healthy?
What temp should the water be at?
Can I and should I put other creatures in the tank with him (fish, beta fish, other frogs, snails,)
How often do I need to change the water?
When changing the water do I need to change all of it?
If I get a filter will I still need to change the water often?
Should I put anything else in the tank with him besides the floating island and the rocks?
He is always just sitting/laying in the bottom corner of the tank... is this normal?
I purchased both flake fish food AND tadpole pellets as well as tryed the lettuce method. which is best? (again I have not seen him eat ever!)
I attached 2 pictures, 1 being him close up in his origional tank, the other 2 are of his new tank with the black rocks and the island....
Thanks in advance for you help! I am sure I will have a million more questions as time goes by, I just want to be sure I am not killing the little guy!