Blue Jaw Trigger Fish - FEMALE - Xanthichthys auromarginatus - Bluechin Triggerfish - Blue Throat Trigger Fish
Blue Jaw Trigger Fish - FEMALE - Xanthichthys auromarginatus The Blue Jaw Triggerfish have a roundish, laterally flat body with an anterior dorsal fin. They can erect the first two dorsal spines, the first one locks and the second one unlocks. This prevents predators from swallowing them or pulling them out of their holes. The Blue Jaw Triggerfish have a small pectoral fin, fused to one spine. Their small eyes, situated on top of their big head, can be rotated independently. They have tough skin, covered with rough rhomboid-shaped scales that form a tough armour on their body. A big, angular-shaped head extends into a snout with strong jaws and sharp teeth, made for crushing shells. Each jaw contains a row of eight teeth, while the upper jaw contains another set of six plate-like teeth. Probably one of the best Triggerfish for the reef aquarium, the Blue Jaw Triggerfish will not bother corals, but may nip at clams or invertebrates. If you plan to keep it with shrimp add the shrimp first. It can be kept with a large variety of other fishes, except small reef fishes. One male can be housed with several females. Provide them with several hiding places where it can retreat to. As with all triggerfish the Blue Jaw Triggerfish will wedge itself into a rock when it sleeps and lock itself in by raising its dorsal fin. This defense mechanism makes it difficult for predators to attack it while it is resting. The male sports a bright blue jaw and yellow fin margins while the female does not. Maximum Size:
The Blue Jaw Triggerfish grows upto 14 inches in length. General Size: This fish generally comes in size varying between 4 to 8 inches. Minimum Tank Size:
A 75 gallons or larger aquarium provides good environment for Blue Jaw Triggerfish. Tank Conditions:
The Blue Jaw Triggerfish should ideally be kept in temperatures between 72 and 78 degrees Fahrenheit. A pH value of 8.1 or 8.4, and a specific gravity of 1.020 to 1.025 should be maintained. When kept with invertebrates, the specific gravity range should be 1.020 to 1.025, for the invertebrate species. In a fish only aquarium, the specific gravity should fall between 1.020 and 1.023. Habitat:
The Blue Jaw Triggerfish occurs on coral reefs of the Indo-West Pacific and in Hawaii. In Australia it is known from the offshore reefs of north-western Western Australia and from the northern Great Barrier Reef to northern New South Wales. Diet and Feeding:
The Blue Jaw Triggerfish is an omnivore that can be fed a mixed diet of shrimp, squid, clams, fish, and other meaty fares suitable for carnivores, as well as marine algae and vitamin-enriched herbivore foods.