User blog comment:Sargenttacos115/Natsu and Gajeel age Theory/@comment-173.49.1.230-20140530041013/@comment-4829046-20140605133553

No. It happened in the anime, just at a different arc.

And both at the same time? Bad idea. Finish updating the manga first, then the anime. Unless of course you are like me and know how to separate the two in your head without getting confused. It is not a good idea to do them simultaneously.