Starry Night Green Spot Care Guide - Aquarium Setup, Diet & Breeding

The Starry Night Green Spot is a large, impressive Madagascan cichlid with a deep-bodied shape and a powerful, slightly elongated profile. Its base colour ranges from blue-grey to olive or greenish brown, and the body is scattered with pale blue, turquoise or silvery spots that can create a starry pattern. Colour intensity varies with mood, age, social status and water conditions.

This species is a confident and intelligent fish that spends much of its time investigating its surroundings. Adults can become strongly territorial, especially when paired or preparing to spawn, and they may harass rivals or smaller fish that enter their chosen area. Although not a shoaling species, young individuals can appear more social before adult territorial behaviour develops.

In the wild, Paratilapia bleekeri is associated with freshwater environments ranging from flowing waterways to quieter pools and lakes. Its habitats typically contain rocks, submerged wood, plants and crevices that provide cover and define natural territories. The species uses its robust mouth to search across the bottom and among hard surfaces for food.

Like many Madagascan cichlids, it is a distinctive fish with a restricted natural range and conservation significance. Its eventual size, territorial nature and striking pattern make it most suitable for experienced keepers with room for a large, carefully planned aquarium.

Paratilapia bleekeri is endemic to Madagascar, where it occurs in freshwater habitats of the island, particularly in eastern and northeastern regions. It inhabits rivers, streams, lakes and other relatively calm waters with rocky or vegetated margins.

A single adult requires at least 300 litres, with a larger aquarium of around 400 litres or more preferable for a mature pair. Aim for a tank at least 150 cm long and approximately 50 cm wide, increasing the footprint for multiple large fish. Use a firm sand or fine-gravel substrate, arrange robust rocks and driftwood to form caves and visual barriers, and leave open swimming space. Hardy plants may be used if securely rooted, although digging and territorial activity can dislodge delicate vegetation. Strong filtration, good oxygenation and stable water quality are essential.

Up to 30 cm (12 inches) as an adult. Males are usually larger and more heavily built than females.

Offer a varied omnivorous diet based on high-quality cichlid pellets or granules, supplemented with frozen foods such as prawns, mussel, bloodworm and larger insect larvae. They also benefit from vegetable matter, including spirulina-based foods and softened peas or other suitable greens. Feed moderate portions rather than allowing uneaten food to accumulate, and avoid relying heavily on fatty mammalian meats, which are not appropriate for cichlids.

Starry Night Green Spots are best kept alone, as a compatible adult pair, or with carefully selected large, robust fish in a very spacious aquarium. Potential tankmates include similarly sized Madagascan cichlids, large peaceful-to-moderately assertive cichlids and sturdy catfish that will not fit in the cichlid's mouth. Avoid small community fish, delicate species, long-finned fish and timid tankmates, which may be eaten, injured or persistently intimidated. Keeping multiple adults together is risky unless the aquarium is exceptionally large and provides clearly separated territories.

Starry Night Green Spots are substrate-spawning cichlids that usually breed as a bonded pair. The female lays adhesive eggs on a firm surface such as a flat stone, while both parents guard the eggs and defend the fry after hatching. Provide clean, well-oxygenated water, suitable spawning surfaces and plenty of space for the pair to establish a territory. Young fish can be raised on freshly hatched brine shrimp and other appropriately sized foods.

Males generally grow larger, with a deeper body and more extended dorsal and anal fins. Females are typically smaller and rounder-bodied, particularly when carrying eggs, although visual differences can be subtle outside breeding condition.