I had a 8inch corris wrasse had him forever he just died dam flukes any way he was with all types of wrasses iver his life time only bothered other corris wrasses they r string though at 8inches he was able to flip few pound rocks but u will mever have pest he will hunt em all down
You tank is bigger then mine and my Coris and melanurus are 6" each. I feed heavy so they don't fight for food. But I never had a problem with them and they are my favorite