美鳍亮丽鲷

Overview

Shells shape the life of Lamprologus callipterus: a male must move them, while a female must fit inside. The sexes consequently differ greatly in size. Strong male territoriality makes floor space and breeding layout especially important.

Distribution & habitat

It is endemic to Lake Tanganyika, occupying transition habitat where rocky shores give way to open water and scattered rock piles interrupt the substrate.

Aquarium setup

A tank around 90 by 30 by 30 cm is suggested for one male with five or six females. Use sand, rock shelters, and many empty snail shells over open areas. Maintain hard, alkaline water. Additional males or other species require substantially more room.

Diet & feeding

Although it accepts a range of foods, live and frozen items should form the main part of its meals.

Behaviour & compatibility

Males are aggressive toward rivals and should only share an aquarium with other species when ample space is available. Suitable companions should use different areas and be of compatible size. Preserve a distinct shell-nesting territory.

Sexual dimorphism

Typical males are much larger and may weigh over twenty times as much as females. Dwarf males also occur, so the usual size contrast does not describe every reproductive male.

Breeding

Use at least three females per male in a dedicated breeding setup, with about 25–26.5 °C and pH 8–8.5. At roughly 9 cm, a male can transport shells into a shallow pit that becomes his nest. Females lay inside individual shells; the male fertilizes from the entrance. A female remains inside for roughly 10–17 days without feeding while the male guards the area. Once free-swimming fry leave the shell, parental care ends. Transfer them for rearing if needed and offer microworms or brine shrimp nauplii.

Notes

Wild nests can span several meters and contain hundreds of shells. Guarding males may stop feeding and eventually lose the territory as their condition declines. Sneaking males attempt fertilization at other males’ nests, while dwarf males can enter shells and are thought to obtain fertilizations there.