Spotting

He died :( I got ur msg yesterday and checked on him and he was floating kinda on his back in the water and wasn't moving. I took him out an held him on my hand and he seemed to sit up. Then I put him in a container with water and set him on a rock, he didn't move odd the rock and when I came back he was flat :(( his lower part of his mouth was almost clear which is weird to me

Well by me the goldfish have green and bull tadpoles, yours doesn't quite look like them but then again bullfrogs can vary in color. Either way your frog needs a tank with land ASAP! A 10 gallon would be good thar way you can add a plastic slope and mabye cover it with moss for land, and the rest of the tank with water, enough to cover his back but no deeper. Ask a pet store if you need help setting up a tank. He wil need live food now. I suggest trying flightless fruit flies and pinhead crickets from a per store. If you can find tiny worms that will be good too. He may only eat at night at first but keep and eye on him to make sure he eats, good luck!

It was a tadpole when I got it, it came in as a mistake with the goldfish! Is there anyway to figure out exactly what it is?

A froglet, basically any day now it needs to go on moist land. It will start eating small,live insects. Could be a Wood Frog perhaps?