You should not post this in the media section, you will get no help here. Go to the general forum or somewhere else. Also, many factors here, tank size, why you would put a flowerhorn with other fish, any previous tankmates, whyd you buy these fish?
No offense, am in a bit of a crabby mood, but what are you asking here? Pretty obvious man, seperate them or return em. If the tank is small it will never work, redecorate, etc may but without any info and a question posed like that youre bound to get no help