I have a cade reef 900 S2 with two clownfish, a orchid dotty back, midas blenny and a royal Gramma. The royal Gramma I got from biota and it's like the smallest fish ever honestly not even sure how they were even able to sell it. Point is the royal Gramma seems to be getting bullied by the orchid dottyback. Not sure what to do it about this considering the tank isn't that small. Should I get rid of the royal Gramma for it's own safety? I'm thinking about getting a couple of more fish down the road but would like to prevent aggression from happening. What do I do? Open to all suggestions