My yellow tang is having issues in my tank. It is 100 gal with just a royal gramma in with it. It is really skittish and is suffering from fin and lateral line erosion. I have been feeding it 2 to three times daily and have been using a combination of frozen mysis, spirial mix brine, regualar brine, flake food, shrimp pellets, algae sheets (green and brown), and broccoli. I have just started using selcon since I heard people raving about it. Does anyone have any suggestions on what could have my tang so spooked. Is it just adjusting? (it's only been in for about 6 weeks) I really want to get it socialized enough to not dart for shelter when I walk by.