I've had gold fish for about 3-4 years in this tank i have and now i'm done with fish. I want to have a new pet. I'm not allowed to have snakes. So, the next best thing is frogs. I just have a few questions.

1. What beginner frogs would be a good fit long-term with a 10gl tank?
2. How many frogs would be happy sharing a 10gl tank?
3. How long do most frogs live for?
4. How much would it cost to feed a frog for like a month, on average?
5. What would I need to put into the tank to keep happy health frogs?

Thanks.