mean little fish

I picked up this decently large arrowhead puffer about a year and a half ago he was my third puffer I’ve ever owned he was purchased at just about 5 1/2 inches so just about full grown I payed $120 for him at a local exotic fish shop they had posted him on Facebook the day he came in and I went...

It is my pleasure to introduce you to the queen diva of my tank... the little 4 1/2” firemouth who picks on EVERYONE including my two 7” Oscars. She was my first cichlid I ever had, and I guess because she was alone for a little while she believes she’s a goddess and everyone should obey her...

I was told it was a monarch damsel. I can't see it being even close. What do you think. Apparently monsterfishkeepers is more reliable with information then Wikipedia. So without further a due