Red-eyed tree frog question!

[flybyferns]

I will be getting a red-eyed tree frog soon, but as an adult. So I dont know how long its been alive.
So I was wondering if anyone could give me an idea of how long a this kind of frog lives before it becomes an adult.

It takes about 3 - 4 months for it to look like a mini version of an adult. (or from egg to froglet is about 16-18 weeks)
Timing eggs to froglet:
Eggs typically hatch in 6 to 21 days, and the tadpoles fall into the water.
They lose their tails and start developing lungs for breathing when they are about 30 days old.
They start sprouting tiny legs within 6 to 9 weeks. (the hind legs typically grow in first )
Then a froglet (a young frog=is juvenile and not full grown yet.... but looks like a smaller version ) or by about (+/-) 3 months old.
During this time the froglet moves from the water.
About 9 months ( +/-) until they look like an adult or full size
I think ( I do not breed) about 1- 1/12 years before they can be breeding
Poor tadpole / froglet care can effect its adult size and health.

Therefore, if it is fully grown....... you will not know exactly how old it is unless you have some sort of history from the previous owner or the breeder. If you are purchasing from a breeder.....they will bet able to tell you exactly how old it is. If purchasing from a pet store..they are often able to tell you about the breeder ( of whom you can try to track down)?

When you get your frog , measure it from the very tip of its nose to the vent ( the pointy end of the body- not the legs ) every few weeks. It is best to measure the frog when it is sleeping on the glass. This will enable you to see if it is still growing. If it is, it would be unlikely for it to be older than one year, or so. Do keep in mind , that some adults are small -especially the males. So a history of the frogs life is the best way to determine age.

Hope this helps
Lynn