# Blue Tang (*Paracanthurus hepatus*) The Blue Tang is a stunning blue fish with a yellow tail. It swims gracefully in the ocean and loves to munch on algae. - **Category:** [Fish](https://www.snappit.app/explore/categories/fish) - **Rarity:** Common - **Danger:** 2/5 · Low - **Habitat:** Coral reefs - **Also known as:** Hippo Tang, Palette Surgeonfish ![Blue Tang](https://res.cloudinary.com/drieglelr/image/upload/v1771424424/objects/4764.jpg) ## Appearance The Blue Tang is a vibrant, disc-shaped fish with an intense royal blue body, bright yellow tail, and striking black markings resembling an artist's palette. Its slender form and contrasting colors make it highly distinctive among reef fish. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Chordata - **Class:** Actinopterygii - **Order:** Perciformes - **Family:** Acanthuridae - **Genus:** Paracanthurus ## Interesting facts - At night, Blue Tangs often turn a pale, grayish-blue to blend in with the dark reef! - Baby Blue Tangs are tiny and yellow, slowly turning blue as they grow up! - Blue Tangs are crucial gardeners of the reef, keeping algae in check! - They use their sharp, hidden 'scalpels' to defend themselves by thrashing their tails! ## Special abilities - **Hidden Blades:** Blue Tangs have sharp, scalpel-like spines near their tail that pop out to protect them from danger. - **Color Communicator:** Blue Tangs can change their color intensity from bright blue to dark purple to signal stress or fright. - **Mucus Armor:** Blue Tangs produce a protective slime layer on their skin that helps defend against parasites and predators. ## Measurements & details - **Length:** 15-31 cm - **Weight:** 0.1-0.5 kg - **Lifespan:** 8-12 years - **Swim Speed:** 10 km/h - **Maximum Depth:** 40 m - **Water Type:** Saltwater ## Diet & Feeding Blue Tangs are busy vegetarians, munching on tiny algae found on rocks and corals. - **Primary Foods:** algae, phytoplankton, marine plants - **Foraging Method:** Grazing ## Ecological connections - **Eaten by:** Leopard Coral Grouper (*Plectropomus leopardus*) — Larger predatory fish often hunt Blue Tangs for food. - **Eaten by:** Grey Reef Shark (*Carcharhinus amblyrhynchos*) — Sharks are apex predators in coral reefs, including the tangs. - **Eats:** Brown Algae (*Dictyota bartayresiana*) — Blue Tangs primarily graze on various types of microalgae. - **Symbiotic with:** [Bluestreak Cleaner Wrasse](https://www.snappit.app/explore/bluestreak-cleaner-wrasse) (*Labroides dimidiatus*) — Cleaner fish remove parasites from the Blue Tang's skin. ## Traits - [Wildlife](https://www.snappit.app/explore/traits/wildlife): Wildlife encompasses all undomesticated animal and plant life existing in their natural habitats. - [Colorful](https://www.snappit.app/explore/traits/colorful): Colorful describes organisms or objects displaying a wide range of bright and distinct colors. - [Herbivorous](https://www.snappit.app/explore/traits/herbivorous): This trait characterizes organisms whose diet consists entirely or primarily of plant material. - [Diurnal](https://www.snappit.app/explore/traits/diurnal): Diurnal animals are primarily active during daylight hours, typically resting or sleeping at night. - [Aquatic](https://www.snappit.app/explore/traits/aquatic): Aquatic habitats encompass environments where organisms live predominantly in water, including oceans, rivers, lakes, and wetlands. - [Marine](https://www.snappit.app/explore/traits/marine): Marine habitats encompass all saltwater environments of the Earth's oceans, supporting an immense diversity of aquatic life. ## Collections - [Fish](https://www.snappit.app/explore/collections/fish) ## Safety **Danger:** 2/5 · Low Watch quietly from a distance and never try to feed or chase wild animals. ## Frequently Asked Questions ### How to identify Blue Tang? Look at body shape, where the fins sit and their outline, mouth position, stripes and spots. Young fish and breeding adults can wear different patterns, and aquarium color varieties can look nothing like wild fish. Fish Identifier: upload a photo and compare the visible details. ### How long is Blue Tang? 15-31 cm ### How much does Blue Tang weigh? 0.1-0.5 kg ### How long does Blue Tang live? 8-12 years ### What does Blue Tang eat? Blue Tangs are busy vegetarians, munching on tiny algae found on rocks and corals. ### How fast can Blue Tang swim? 10 km/h ### Where is Blue Tang usually found? Coral reefs ### How does Blue Tang hunt? Grazing ## Where to spot - [The Seas with Nemo & Friends](https://www.snappit.app/guides/places/the-seas-with-nemo-and-friends-florida) — Florida, US · Zoo - [The Seas with Nemo & Friends](https://www.snappit.app/guides/places/the-seas-with-nemo-and-friends) — Florida, US · Aquarium - [Orlando Festival Park](https://www.snappit.app/guides/places/orlando-festival-park) — Florida, US · Park [View all places to see Blue Tang](https://www.snappit.app/guides/where-to-see/blue-tang) ## More Fish - [Rainbow Trout](https://www.snappit.app/explore/rainbow-trout) (*Oncorhynchus mykiss*) - [Brown Trout](https://www.snappit.app/explore/brown-trout) (*Salmo trutta*) - [Brook Trout](https://www.snappit.app/explore/brook-trout) (*Salvelinus fontinalis*) - [Lake Trout](https://www.snappit.app/explore/lake-trout) (*Salvelinus namaycush*) --- Source: [Blue Tang: Characteristics, Facts & Places to See — Snappit](https://www.snappit.app/explore/blue-tang)