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FAQs about Hawaiian Tangs Back to Articles about: Hawaiian Surgeonfishes, Called a "Cat" Tang in Hawai'i, this is the touchy Powder Brown to aquarists | 
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Olivaceus Tang hlth 2/2/08
Hi guys
<B and L>
Your website is great and has provided us with many helpful tips and suggestions.
<Our hope>
We are located in Aus, and have a 10 x 2 x 2 tank, which we added a large Olivaceus/Orange Shoulder tang to a week ago.
<Am out in some of this species prime territory (Hawai'i) currently...>
He seems to scratch and smack himself in the head with his fin and has had these black marks appear recently (see attached).
<I see... typical "break down" syndrome...>
I lost a tang which had very similar marks on its body a few years ago. He is swimming and eating well. Other tank mates are Blue/Regal tang, Lipstick tang, Sailfin tang, Emperor angel, Blue Face angel, Blue Spot Sting Ray and Zebra eel.
<Yikes... I do hope this system is huge>
Testing all our parameters I cant find anything out of the ordinary. Can you help in any way, by letting us know what it could possibly be and how to treat it?
Thanks in advance for your time.
Brett and Leanne
<As you state, this specimen is feeding well... I would introduce and feed (likely exclusively) Spectrum pelleted foods to all the stock you list... Please read here re: http://wetwebmedia.com/foodsppt1.htm
This food by itself will greatly bolster the immune system of the Acanthurus, and help to lessen aggressive behavior/stress amongst all... Bob Fenner> | 
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Hawaiian black tang (?)
Hi BOB,
yesterday my dealer had some live stock from Hawaii, he show me a chevron tang and a black tang. The chevron is abt 2inch and black tang abt 3inch and cost SIN $ 250.
<Curious/er... Ctenochaetus hawaiiensis, the Chevron sometimes are called "Black" Tangs when they get bigger (and do turn blacker)... but rarely at just three inches...> so I told him to give me 2 days to consider and seek your advice before doing the purchasing. It is black and only 10% resemble the zebrasoma scopas.
<Not recorded from here/there... do have Z. flavescens, Z. veliferum (Yellow and Convict...)>
Is there such tang call black tang, is it easy to keep,
<Yes, both the Scopas and Long-Nose (Z. rostratum) go by these common names in English-speaking markets in various places... both are easy to keep with the latter getting quite large...>
I it worth buying and my purple tang is 2inch and is it ok to be together? looking forward for you guidance. THANKS
<In a large enough system, likely yes (like a hundred or more gallons), both placed at same time, as small... Bob Fenner, who suggests reading through the Surgeon pieces and FAQ files on the www.wetwebmedia.com site>
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