Help identifying big tadpole

Hi,

I work in a pet store and we got this big guy in with our goldfish shipment. I've had him for about a month now, he only had little hind limb buds when I first took him home.

His front legs literally developed overnight. He's roughly 3 inches long, tip of the mouth to tip of the tail.

Now, I need help identifying him. I'm leaning more toward green frog, but I'm not sure. Also, when should I put a rock in his tank so he can climb out? I've heard as soon as front legs develop, or when the tail starts being absorbed. He stopped feeding two days ago now.

Anyway, here's a picture

Any info will be appreciated, thanks.

That size would lead me to believe it's a Bullfrog.

kinda looks like a leopard frog tadpole.

It seems to have dorsolateral folds going...in that case green frog.

that pic is a month old, it should have completely morphed out by now. How about an updated picture???

Yep, it was indeed a green frog. I took a few pictures, but they're not good at all. I freed him about a week or so ago.

Thanks!

Mudbug wins, he guessed it right!!!!!!!!!!!