Yellow tangs: Is this a problem?

[byronsands]

We have 5 yellow tangs in our 465g DT. Several of them appear to be developing white area around their eyes which sort of appear to be descaling?? Please excuse the low quality, but theses 2 images were taken with an iPhone. This yellow tang appears to have the largest areas of white (both images are of same tang). Any of you know if this a particular malady or just somewhat normal. Note: these tangs were quite small when acquired and have tripled in size. They have all been in the tank now for around 15 months.

http://i1058.photobucket.com/albums/t412/byron367/fish/1_zpsf6c8621e.jpg (http://s1058.photobucket.com/user/byron367/media/fish/1_zpsf6c8621e.jpg.html)http://i1058.photobucket.com/albums/t412/byron367/fish/2_zps9a081885.jpg (http://s1058.photobucket.com/user/byron367/media/fish/2_zps9a081885.jpg.html)

[Mrscribbled]

Loojs like HLLE, not contagious, can sometimes be reversed through improved nutrition, removal of carbon, adding miracle mud.

[insomniac2k2]

Looks like HLLE to me too. Feed that sucker a lot of Nori.

[byronsands]

a shot of the whole tank for those interested:

http://i1058.photobucket.com/albums/t412/byron367/media_room_024_zps2705d117.jpg (http://s1058.photobucket.com/user/byron367/media/media_room_024_zps2705d117.jpg.html)

[MrTuskfish]

Possibly HLLE, there seems to be white along the lateral line too. Everything under the sun has been suspected of causing this, carbon dust is the latest possible cause to get some attention. Pristine water, good diet and added vitamins are the only cure I know of. I believe its generally harmless.

EDIT: Obviously 3 of us typing at once.

[byronsands]

thanks guys... I do have carbon & GFO reactors on the system... I do put nori in on a clip about 5 morning of the week, maybe not enough??

[Mrscribbled]

Soak the nori in vita chem, 5 feedings a week is enough, NLS pellets, pe mysis are other good food sources.

[MrTuskfish]

Soak the nori in vita chem, 5 feedings a week is enough, NLS pellets, pe mysis are other good food sources.

The PE Mysis is a great food for tangs. They are considered herbivores, but eat lots of tiny animals as they graze. PE Mysis is always the first food I offer to new tangs in my QT. I keep a lot of tangs and PE mysis is a favorite food of all of them.

[ca1ore]

Agree with the prior posts. I have been able to reverse head and lateral line erosion most times through a combination of nori daily and PE Mysis (the bigger ones) soaked in Selcon or Zoe. Takes a while, bud doable.

[snorvich]

The PE Mysis is a great food for tangs. They are considered herbivores, but eat lots of tiny animals as they graze. PE Mysis is always the first food I offer to new tangs in my QT. I keep a lot of tangs and PE mysis is a favorite food of all of them.

Agreed. It is also the first food I give leopard wrasses which are notoriously difficult to feed initially on occasion.