Well first off rarely do Wild Caught endlis come in at that size. And if they do come in at that size the LFS will make sure you know by jacking the price up and labeling it, but like I said rarely do LFS get endlis much less WC endlis. Another way is physical features. The head shape of yours is much more rounded and had "frog eyes." Where as WC endlis usually have flatter heads and eyes are more natural looking. And once you get used to telling the difference you start to be able to see smaller things such as pattern difference, and other smaller things.
Cool thanks for the info Dr.B, I still have much to learn as they all still look very similar to me, in time I will know these differences I hope.. I am living in India where many aquarium shops say their fish are wild caught as a selling point.. im glad it is a captive bred as I would prefer that thank you again.