Apistogramma Agassizii (Fire Red)

Apistogramma agassizii is one of the most iconic and widely kept dwarf cichlids in the aquarium hobby, native to the Amazon River basin across Brazil and Peru. The 'Fire Red' strain is a selectively bred variant developed in German and Czech fishhouses that intensifies the natural reddish colouration of wild males to a spectacular blaze of orange-red, making it one of the most visually striking small cichlids available.

Males grow to approximately 8–9 cm and are larger and more colourful than females, which reach only 5 cm. Males display a distinctive sword-like extension of the tail fin and elongated dorsal fin spines that contribute to their dramatic silhouette. During courtship and spawning, females undergo a remarkable transformation — turning vivid lemon-yellow with black facial markings to advertise their reproductive status.

Like all Apistogramma species, A. agassizii inhabits blackwater streams and floodplain pools in the Amazon, where water is extremely soft, acidic, and tannin-stained. In captivity, replicating these conditions — soft water, low pH, abundant hiding places, and gentle filtration — is essential for health, colouration, and successful breeding.

Apistogramma are cave spawners. A pair will select a small cave, hollow log, or coconut shell in which the female deposits eggs and guards the clutch fiercely while the male patrols a larger territory. This spawning behaviour and parental care make Apistogramma among the most rewarding cichlids to breed.

Tank Setup: A 60–80 litre aquarium for a pair. Provide a sandy substrate, multiple coconut shell caves or ceramic hides, robust root wood, and dense planting with species like Anubias, Cryptocoryne, and Java fern. Add dried leaf litter (Indian almond or oak) to release tannins and provide refuge for fry.

Water Parameters: Temperature 24–29°C; pH 5.5–7.0; GH 1–8 °dH; KH 1–4 °dH. Soft, slightly acidic water is critical for long-term health and breeding. Use RO water blended with tap, or condition with peat or Seachem Acid Buffer if your tap water is hard.

Feeding: Carnivore-leaning omnivore. Feed high-quality small cichlid pellets, frozen and live bloodworm, Daphnia, brine shrimp, and Mysis shrimp. Feed twice daily in small portions. Varied diet is important for colouration and conditioning.

Tank Mates: Best in a species-only or Amazon biotope setup. Compatible with small, peaceful schooling fish occupying the upper water column (small tetras, pencilfish) that do not compete for the substrate area. Avoid other bottom-dwellers and aggressive species. Do not keep multiple Apistogramma males together in small tanks.

Behaviour: Males are territorial toward other males and will establish a 'territory' around a cave. Females become extremely protective when guarding eggs or fry — temporary aggression toward all tank mates is normal and expected during this phase.

Health: Sensitive to poor water quality and elevated nitrates. Perform regular small water changes (20% twice weekly) rather than large infrequent changes. New Apistogramma are prone to internal parasites from wild-caught parents — consider prophylactic treatment when first acquired.