It does kind of resemble euchilus alittle.noki said:! How big/ small is this fish? yeah, seems to have been dosed with artificially hormones giving it those unnaturally long brilliant fins.
I would guess a Chilotilpaia species. Unless it is some Red Empress hybrid. Not really called a "Peacock", unless the term "Peacock" applies to the unnatural mystery hormoned fish that are commonly sold now.