This freshwater fish in natural conditions usually has less coloration, but most are light orange and orange-red. Males have a distict hump on the forehead, which indicates the age and position of the individual. They reach size of 25 cm. Couples carefully guard their eggs and later offspring. While the female always remains near them,[…]
It lives in the warm waters of the Indian Ocean on coral reefs, mostly in shallow waters of 1 to 25 m. It reaches a length of about 30 cm. It occurs both in flocks as well as alone. It feeds on benthic plants.
Threadfin butterflyfish is in the wild very calm fish, which is an object of underwater photos. Signs for that are: length (to approximately 23 cm), elegant appearance and bold personality. When it’s adapted to live in the aquarium, and it lasts quite short time, it makes a spectacular show.
Raccoon Butterflyfish is easily recognized by the black mask, by what it’s often called racoon. During the day, in the wild usually stays hidden, while at night it’s looking for food. It’s relatively large eyes are effect of adaptation for nocturnal lifestyle.
Razorfish, a representative of the Sygnathiformes family, swims vertically. The latter, as well as the body shape, allows to hide between spines of an urchin. The dorsal part of the body is sharp and can hurt a potential attacker.
The Bluespotted ribbontail ray is a small species of rays, characteristic for the coral reefs habitats. It searches for food at the sandy bottom areas, looking primarily for mussels. At the dorsal side of the ray there are distinct blue spots. At the end of the tail there are two venomous spines. It is an[…]
Beautiful, but dangerous inhabitant of coral reefs. It lives at depth of 50 m. It feeds on small fish and crustaceans. Active mainly during the night. At the base of the dorsal fins’ spines it has venomous glands for protection. A sting can be fatal for human in severe cases.
A small shark growing up to 60 cm in length. It occurs only in shallow coastal waters of Australia, to a depth of 4 m. It feeds on molluscs, crustaceans and small fish. It’s a benthic shark. It can usually be found among stones. The Australian marbled shark is one of the smallest sharks. It[…]
In this species the phenomenon of protogyny occurs, which means that all juveniles develop as females. Later, some individuals change sex and become males. Sea goldies form harems. When a male dies, the strongest female changes sex and takes the lead. Distinct sexual dimorphism can be observed, a male reaches up to 15 cm and[…]
The mollusc still considered relatively abundant from the Red Sea and the coast of eastern Africa, through the Indo-Pacific to the Eastern Pacific. It is listed in Appendix II of CITES. It reaches a maximum size of 40 cm.