Amazon yellow dwarf cichlid (Apistogramma aff. pertensis) — 2-2,5cm

Overview

Aquarists browsing tropical fish for sale UK will find Apistogramma aff. pertensis—commonly known as the Amazon yellow dwarf cichlid—a captivating addition to planted aquariums. This striking yellow colour form, sourced from the Amazon basin, reaches a diminutive 3.5cm at maturity yet delivers vivid golden coloration and engaging personality. At 2-2.5cm, these juveniles are at an ideal size to introduce into established aquariums, allowing keepers to watch them develop full adult splendour. While exact wild locality varies by collection, this species shares the hallmark traits of the pertensis complex: compact size, soft-water requirements, and rewarding breeding behaviour. Available for sale UK through specialist retailers, this yellow gem is perfect for aquarists seeking rare dwarf cichlids for peaceful community setups.

Appearance

The Amazon yellow dwarf cichlid is immediately recognisable by its brilliant golden-yellow body coloration, which becomes more intense in mature, healthy males. The body displays a laterally compressed form with flowing finnage—males develop extended dorsal and anal fins with intricate patterning, often featuring dark edging and iridescent blue or green highlights. The caudal fin may show subtle banding or lyre-shaped extensions. Females are smaller and less colourful, displaying a more subdued yellow or cream hue. Juveniles at 2-2.5cm already show hints of the vibrant yellow that will intensify with maturity. Coloration is most vivid in soft, tannin-stained water with subdued lighting and a dark substrate.

Natural Habitat

This species is associated with the Amazon basin, though exact wild locality for this colour form is uncertain and may vary by collection. Typical habitat features soft, acidic blackwater streams, flooded forest margins, and shallow pools with minimal water flow. Submerged roots, fallen branches, dense aquatic vegetation, and abundant leaf litter create sheltered microhabitats. The substrate is fine sand or silt covered in organic debris. Understanding these blackwater conditions is essential for replicating appropriate aquarium parameters.

Aquarium Setup

A minimum 40-litre aquarium is suitable for a pair or small group, with larger tanks offering greater stability and reduced territorial conflict. Use fine sand substrate and incorporate driftwood, Indian almond leaves, and smooth stones to create caves, hiding spots, and visual barriers. Dense planting with soft-water species such as Cryptocoryne, Anubias, and floating plants diffuses lighting and provides shelter. Gentle filtration through a sponge or small canister filter maintains water quality without excessive current. Tannin-stained water enhances coloration and supports immune health. Subdued lighting and a calm environment reduce stress and encourage natural behaviours.

Water Parameters

Apistogramma aff. pertensis requires soft, acidic water for optimal health. Maintain temperatures between 24-27°C and pH from 5.5-7.0, with low hardness. Regular partial water changes with dechlorinated, appropriately conditioned water are essential. Efficient biological filtration and low nitrate levels (under 20 ppm) support long-term health. Avoid sudden fluctuations in temperature or chemistry, as juveniles are particularly sensitive to stress.

Feeding

This carnivore thrives on a varied, protein-rich diet. Offer high-quality micro pellets or granules formulated for dwarf cichlids, supplemented with live or frozen foods such as daphnia, brine shrimp, bloodworms, and small insect larvae. Occasional vegetable-based foods are acceptable but not essential. Feed small portions twice daily, adjusting quantity as juveniles grow. Remove uneaten food promptly to maintain water quality. A diverse diet ensures vibrant yellow coloration and robust growth.

Behaviour

This semi-aggressive dwarf cichlid exhibits moderate territorial behaviour, particularly in males. However, in a well-planted, well-structured aquarium, aggression is usually limited to displays and posturing. Males establish small territories around caves or other focal points. Females are less territorial but become protective when breeding. The species is generally peaceful toward non-competing tankmates and spends much of its time exploring the lower levels of the aquarium, foraging and investigating crevices.

Tank Mates

Ideal companions include small, peaceful schooling fish such as tetras, rasboras, and peaceful pencilfish, which occupy upper and mid-water levels. Bottom-dwellers like Otocinclus and peaceful dwarf plecos are usually compatible in larger aquariums. Avoid large or boisterous fish, aggressive cichlids, fin-nipping species, very active bottom dwellers, and fish large enough to prey on them.

Breeding

Breeding typically occurs in soft, acidic water within a cave or sheltered spawning site. The female deposits eggs on a flat surface and then guards them closely, while the male defends the surrounding territory. Eggs hatch in 2-3 days, with fry becoming free-swimming after about a week. Feed fry on infusoria or liquid fry food initially, transitioning to newly hatched brine shrimp. Provide visual barriers and space to reduce male aggression during breeding.

Why Buy from Tropical Fish Co

Tropical Fish Co is the UK's premier destination for rare and specialist dwarf cichlids, including the stunning Amazon yellow dwarf cichlid. Every fish is ethically sourced, carefully quarantined, and health-checked by our expert team. We provide detailed care guides, personalised advice, and ongoing support to ensure your success. With secure, temperature-controlled delivery across the UK, comprehensive online resources, and a passion for quality livestock, Tropical Fish Co makes it easy to build beautiful soft-water planted aquariums. Trust us for healthy, vibrant fish and exceptional customer service.