Achillies Tang

Achillies Tang

The Achillies Tang, also known as the Achillies Surgeonfish, has been classed as one of the most expensive but yet striking fish on the market today. Its colourings are nothing like any other fish in the ocean and can draw attention to any aquarium it inhabits.  

A 180 gallon aquarium or larger is necessary to provide plenty of swimming room,and these fishes require strong water flow as they are normally found in surge zones. It can be aggressive towards other Tangs, but peaceful with other fish.

It is said that the Achillies Tang is one of the most prized specimens of all saltwater fish for its coloration, and one of the most desired Tangs for the reef aquarium. Furthermore, many hobbyists suggest that this Tang should be added after more shy and cautious fish have been introduced since the Achillies Tang is known to become very dominant when introduced first and may show aggression towards fish introduced afterwards. 

Although Tangs will eat meaty foods along with the other fish in the aquarium, it is important that they are offered plenty of marine-based seaweed and algae. This will strengthen their immune system, reduce aggression, and improve their overall health. Offer dried seaweed tied to a rock or use a clip, and feed at least 3 times per week.

Minimum Tank Size: 600 Litres
Care Level: Expert Only
Temperament: Semi-aggressive
Reef Compatible: Yes
Water Conditions: 72-78° F, dKH 8-12, pH 8.1-8.4, sg 1.020-1.025
Max. Size: 8½"
Colour Form: Purple, Tan
Diet: Herbivore
Family: Acanthuridae
Origin: Hawaii

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Easy to Care For
Easy to Feed
Peaceful with Others
Reef Safe
Invertebrate Safe

  1. After losing my first Achilles that was purchased at the lfs, I looked at LiveAquaria as an oppurtunity to receive a healthy specimen. This is one of the most beautiful tangs. It is very active and demands lots of swimming room. It is a voracious algae eater!

  2. The Achilles Tang is a high-energy, dramatic fish that demands superior water conditions and plenty of swimming room to remain healthy. It can be prone to ich, particularly if water parameters are not adhered to. I have kept this fish successfully with other surgeons and tangs (naso, purple, and regal) with the Achilles Tang being introduced last.

  3. I’ve had mine for about 1.5 yrs so far. Tank is 6′ x 4′ with a lot of flow and this fish uses every inch nearly every minute. Eats everything I feed….Formula 1 and 2 pellets, frozen mysis, frozen squid, frozen clam, frozen octopus…and loves nori. I observe the same eating pattern….swim up to the nori clip….5 nips….then do a quick lap of the tank and return to the clip. My achilles was extremely aggressive toward newly introduced Acanthurus tangs. After pecking order was established, that behaviour stopped completely. It is extremely sensitive to ich and is the only fish in the tank that seems to have trouble with it.

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