Common name: Bigeye emperor

General information

The Humpnose Big-eye Bream, scientifically known as Monotaxis grandoculis, is a distinctive species of fish that is recognized for its large eyes and characteristic hump on the forehead of larger adults. This species is part of the family Lethrinidae and is often found in tropical marine environments. They are not as common in the aquarium trade as some other marine fish, but they can make interesting additions to larger fish-only or mixed-species tanks due to their peaceful nature and unique appearance.

Care

Monotaxis grandoculis requires a spacious aquarium with plenty of swimming space and hiding places. They are generally peaceful and can be kept with a variety of other fish species, provided that tank mates are not overly aggressive or small enough to be considered prey. This species is omnivorous and will accept a wide range of foods, including meaty items and vegetable matter. Consistent water quality and stable environmental parameters are crucial for their well-being.

Reproduction

In the wild, Monotaxis grandoculis exhibits a complex reproductive behavior that includes forming spawning aggregations. However, breeding this species in captivity is rare and not well-documented. Hobbyists typically do not breed this fish due to the challenges associated with rearing the larvae and the lack of commercial demand.

Habitat

The natural habitat of the Humpnose Big-eye Bream spans across the Indo-Pacific region, from the Red Sea and East Africa to the central Pacific. They are commonly found in coral reefs, lagoons, and adjacent sandy areas, often at depths ranging from shallow waters to about 30 meters. Their preference for reef-associated habitats makes them a suitable choice for reef aquariums that can accommodate their size and dietary needs.

Geographical distribution includes areas such as the Red Sea, East Africa, the Indo-Malayan region, northern Australia, and various Pacific islands.