HELP with American Bullfrog, please?

[danywill]

Really? Uh oh. A coworker of mine rescues tadpoles from the feeder tanks whenever she sees them and they have always grown up to be bullfrogs and she later releases them in a pond. I don't have experience with tadpoles so I just took it for granted it was a bullfrog since that's all we've ever had.
Because of what you said I asked the aforementioned coworker if the picture of mine looked like the ones she raised (she wasn't at work the day I took it home) and she said hers didn't look like this one. I've been looking at various tadpole species online to compare but I'm totally stumped!
This complicates things, now I'm not even sure how to take care of it if I don't know the species!
Can anyone help identify it,

[Mentat]

Hello Dany and welcome to FF! Right now would just let frog be in the 10 gal. with 50-50 set-up. I would not feed it until tail is almost or totally gone. Do 50-100% water changes with dechlorinated water daily depending on volume unless the is a filter with cycled media in the water section. I'm guessing a water depth around frog height or slightly more will allow frog to swim in it fine.

Even if American Bullfrog, you might be able to keep in 55G for a while. If other smaller species; then you can re-evaluate once ID is made. Good luck !