Lol... this a cute thread... there was another thread similar to this one I found that I was giggling out loud about all the different personalities and how people will use mirrors to help their fish flare and defend their territories and how it can help their fish feel satisfied that they scared off the "intruder" once the mirror is taken away... so funny!
I have tried the mirror thing a few times and he doesn't seem interested... he'll stop and look at his reflection and slowly swim a little, and watch himself again, then swim, watch... nothing...
He flared once when I tried to take a pic... my camera sassed him, and I couldn't snap the pic fast enough hahaha... oh well