So I have a 32 gallon Biocube with a full size royal gramma (3 inches) and a 1 inch clownfish. Little backstory, I had a Midas blenny (5-6 inches) in the tank too and he was the dominant fish until he passed. Ever since, my royal gramma has become the dominant fish and has become even more aggressive and territorial. I added a blue reef chromis soon after, and i believe my royal gramma killed it within the week that it was in there based off the initial aggression when I added him (he nipped him several times the first day, and on one nip I think I remember seeing blood. used an acclimation box for 3 days too). I’m looking for a more dominant fish to add to the system to reduce the aggression of my royal gramma. I have been considering a cherub angelfish (LFS only has one at 1-1.5 inches) and/or a sixline wrasse. Which addition do you think will be best for my current situation?