Herefishyfishy
Smart Bass
I have seen three hippo tangs in local reefs who had some signs of this. One was very bad and she had no idea it was a problem or what it came from. Her are a few references.
http://saltaquarium.about.com/cs/headlledisease/a/aa040901.htm
http://www.marineaquariumadvice.com/hypothesis_head_lateral_line_erosion.html
http://www.marineaquariumadvice.com/hypothesis_head_lateral_line_erosion_2.html
http://www.ecosystemaquarium.com/html/hlle.html
http://www.reefkeeping.com/issues/2005-06/sp/index.php
http://images.google.com/imgres?img...12&tbnw=92&prev=/images?q=HLLE&svnum=10&hl=en
http://saltaquarium.about.com/cs/headlledisease/a/aa040901.htm
http://www.marineaquariumadvice.com/hypothesis_head_lateral_line_erosion.html
http://www.marineaquariumadvice.com/hypothesis_head_lateral_line_erosion_2.html
http://www.ecosystemaquarium.com/html/hlle.html
http://www.reefkeeping.com/issues/2005-06/sp/index.php
http://images.google.com/imgres?img...12&tbnw=92&prev=/images?q=HLLE&svnum=10&hl=en