Sexing age of Amazon Milk Frogs? (pics included)

[flybyferns]

I recently bought 2 Amazon Milks Frogs from a store, they were the final 2 of a batch that arrived in the store about 4 or 5 months back.

I was wondering of the age they need to be to use their size as a method of sexing, I have included a pic below and going on the size's they appear to be male and female, unless the little 1 just isnt growing as fast as the other!

Anyone have any ideas? thanks in advance!

Kyle


(smaller frog is called Gleep, larger frog is still unnamed!)

Here's a pic of when I very 1st got them before I put them in the vivarium


Another pic once I had added them to the vivarium


Same as before but further away


The smaller of the 2 sitting on my thumb to show it's size


This is the vivarium I made to house them in

Kyle ,
Welcome to FF !
You might PM Michael Novy. He breeds them and may be able to help you.
Lynn