Adult Bullfrog Care?! Please help!?
I found a bullfrog in my neighborhood with some friends. They started finding others, and we're going to keep them. I thought it would be good to release them, but knowing my friends don't have a hospitable living place for them, I decided to save one.

The tank I have is an old turtle tank, and it's a little over 50 gallons. I have the water where he can go under and it covers it's whole body. I have a small bank where he can sit and be dry, and some vegetation. I don't have a top for the tank, so I'm worried he'll hop out.

I'm going to get some crickets and worms from the store, so I can feed him.

I don't know if the waters too high, or how much I should feed him, or if he needs a bigger place, or even if he is a he or she.

If you could answer..
~How to know what gender it is
~What or where should I keep it
~Does temperature matter
~anything that is important or that could make it happy

And...
~names?

Please give me a thorough answer. I don't want my bullfrog to die.

Also: The tank is covered with pebbles on the bottom.

Cheers