I could use some advice, I recently added a md powder blue and small purple tang to my 300 gallon tank, I already had a clown,blue, yellow and sailfin tang also a queen and emperor angelfish. The clown tang is pretty small but terrorizing the pbt and the yellow is attacking the purple tang, the queen angel got in on the action now and is nipping at the powder blue. I can see small lacerations on the yellow and on the powder blues fin. Theres 400 pounds of live rock covered in algae in there also I let it grow on the back wall so there's plenty of grazing room, it's an 8 foot tank. I've tried moving the rock around no luck. What can I do?