Metriaclima estherae Maylandia

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Metriaclima estherae Maylandia is an African cichlid from the mbuna group, native to Lake Malawi. The albino form, commonly sold as Albino or Albino Red Zebra, retains the sturdy body shape and territorial behavior of the species but shows a very pale coloration and reddish eyes. This fish naturally grazes algae growing on rocks and defends a small breeding area. In an aquarium, it requires a rocky layout, alkaline water and a mainly vegetable-based diet. It remains popular because it combines a strong personality, relatively easy breeding and a distinctive appearance. Careful stocking is essential because males can be assertive.

General species description

Metriaclima estherae Maylandia belongs to the zebra complex, a group of mbuna adapted to life among rocks. The name Maylandia is widely used today, while Metriaclima remains present in part of the aquarium literature. The species is active, territorial and hardy, but it is not suitable for a small, peaceful community aquarium. Males usually claim a cave or rocky surface and defend it, especially during breeding. Females are maternal mouthbrooders: they hold eggs and fry in their mouths. The albino form is a captive-bred variety and should be maintained like the typical species, with numerous visual barriers, hiding places and carefully planned stocking.

Geographical origin and biotope

Countries of reference: Malawi and Mozambique. The species comes from Lake Malawi, particularly rocky areas in the southeastern part of the lake associated with Minos Reef and the Nankumba Peninsula. It is not a river fish; its native habitat is a large African freshwater lake with alkaline, mineral-rich water. The biotope is dominated by rock piles, crevices and walls covered with algal growth. Water movement may be strong around exposed rocky formations, although the fish mainly uses shallow shoreline areas. Efficient filtration and good oxygenation reproduce these conditions better than an open aquarium with few shelters.

Precise location and local name

Wild populations are associated with Minos Reef, in the southeastern part of Lake Malawi, and with areas around the Nankumba Peninsula. In the aquarium trade, the names Red Zebra, Albino, Albino Red Zebra and Estherae are used. Minos Reef is therefore the most useful collection locality rather than a river name. In stores, Albino generally refers to the pale variety of Metriaclima estherae Maylandia, not to a separate species. Fish carrying a precise locality should be kept apart from other zebra forms to reduce hybridization and help preserve the identity of established strains.

Appearance and physical characteristics

The body is deep and laterally compressed, with well-developed fins typical of many mbuna. The albino form has a cream-white to pinkish base color, red or pink eyes and translucent fins that may show orange tones. Vertical markings are usually absent or greatly reduced. In the typical form, males may be pale blue, while females are often orange to reddish, with considerable variation between populations. The subterminal mouth and fine jaw teeth are adapted for grazing algae from rocky surfaces. Adult fish generally reach about 12 to 13 cm. Body depth and fin development contribute to its powerful, compact appearance.

General diet

Metriaclima estherae Maylandia is mainly an herbivorous grazer. In the lake, it scrapes algae and the microorganisms living among the algal film from rocks, while also consuming small animal particles. In the aquarium, the diet should be based on flakes or pellets with a high vegetable content, supplemented with foods containing spirulina. Feed small portions several times rather than one large meal. Foods that are consistently high in animal protein may contribute to digestive problems in mbuna. A varied diet dominated by plant matter supports growth, coloration and breeding. Blanched vegetables can be offered occasionally. Remove uneaten food promptly to protect water quality.

Essential data

• Name of the original river: none; a lake-dwelling species from Lake Malawi
• Local name used: Minos Reef
• Origin of the scientific name: a zebra-group species transferred from Pseudotropheus to Metriaclima or Maylandia
• Full-name etymology: Maylandia honors Hans J. Mayland; estherae honors Esther Grant; Metriaclima is an older genus name
• Common and vernacular names: Albino, Albino Red Zebra, Red Zebra albino
• Family: Cichlidae
• Subfamily: Pseudocrenilabrinae
• Name pronunciation: meh-tree-ACK-lee-mah es-THAIR-ee-ah — may-LAN-dee-ah es-THAIR-ee-ah
• Discovery: described by William A. Burgess in 1976
• Maximum adult size: about 13 cm
• Water temperature and pH: 24 to 28 °C; pH 7.8 to 8.6
• Appearance of the waterway and surrounding vegetation: not applicable; rocky lake habitat with algae on stones and little tall aquatic vegetation
• Typical tankmates: Labidochromis caeruleus, Cynotilapia afra, Iodotropheus sprengerae, Pseudotropheus socolofi, Maylandia callainos, Melanochromis auratus
• Temperament and behavior: territorial, active and moderately to strongly aggressive; grazes rocks and defends a breeding area
• Water depth: shallow rocky shoreline, generally only a few metres deep
• Sexual dimorphism: males are often larger and more colorful; female coloration is variable
• Bottom structure and flow: rocks, crevices and rubble; moderate to strong movement near exposed formations

In your aquarium

To succeed with Metriaclima estherae Maylandia, provide a spacious aquarium with a layout made of many rocks and hiding places, along with strong biological filtration. A ratio of one male to several females helps distribute territorial pressure. Avoid peaceful species, long-finned fish and very similar mbuna, which may be harassed or encourage hybridization. Keep the water stable, warm, alkaline and well oxygenated. A mostly plant-based diet, regular water changes and close observation of brooding females are key to long-term success. The albino variety is common in the aquarium trade, but responsible selection remains important for maintaining healthy, well-shaped fish.