Cheirodon axelrodi gold 3 - (Paracheirodon axelrodi) — 3-5cm

Overview

The Gold Tetra variant of Paracheirodon axelrodi, also known as Cheirodon axelrodi gold, is a stunning, selectively bred form of the classic Cardinal Tetra. Native to the blackwater and clearwater tributaries of the upper Orinoco and Rio Negro basins, this small, peaceful species is celebrated for its shimmering golden coloration and schooling behavior. Available for sale UK-wide, the Gold Cardinal Tetra thrives in soft, warm, well-planted aquariums and is a captivating choice for aquarists seeking a unique, colorful centerpiece species.

Appearance and Coloration

The Gold Cardinal Tetra displays a brilliant golden to yellow body with iridescent highlights, replacing the classic electric blue stripe of standard Cardinal Tetras. The lower body retains a rich red to orange hue, creating a striking contrast. This compact, streamlined species has large, expressive eyes and delicate, translucent fins. The golden coloration is most intense in well-conditioned individuals kept in optimal water conditions.

Natural Habitat

Paracheirodon axelrodi inhabits blackwater and clearwater tributaries of the upper Orinoco and Rio Negro basins in South America. These habitats feature soft, acidic water stained by tannins from decaying organic matter, dense vegetation, and subdued lighting beneath forest canopy. The fish form large schools in the wild, sheltering among plants and submerged roots while foraging for small invertebrates and zooplankton.

Aquarium Setup

A minimum 40-litre aquarium is suitable for a small school of Gold Cardinal Tetras, though larger tanks are preferred for stability and larger groups. Provide dense planting using species like Amazon Sword, Cryptocoryne, or Java Fern, combined with driftwood and leaf litter to replicate blackwater conditions. Subdued lighting reduces stress and enhances coloration. Gentle filtration maintains water quality without creating excessive current, as this species prefers calm water.

Water Parameters

Maintain soft, acidic water with pH 4.5-7.0 and temperatures between 23-27°C. General hardness (GH) should be low, ideally 1-5 dGH. The Gold Cardinal Tetra is sensitive to hard, alkaline water and performs best in mature, well-established aquariums with stable parameters. Use peat filtration, Indian almond leaves, or blackwater extracts to replicate natural conditions. Perform weekly water changes of 15-20% to control nitrate while maintaining stable chemistry.

Feeding and Diet

Paracheirodon axelrodi is an omnivore that thrives on small live and frozen foods. Offer quality micro-pellets or flakes as a staple, supplemented with frozen or live daphnia, baby brine shrimp, cyclops, and micro-worms. Occasional plant-based matter or spirulina-based foods provide balanced nutrition. Feed small portions 1-2 times daily, ensuring food is consumed promptly to prevent water quality degradation.

Behaviour and Personality

The Gold Cardinal Tetra is a peaceful, shy schooling fish that thrives in groups. Shoaling behavior is most pronounced in larger schools, with fish moving together in synchronized, shimmering patterns. This species occupies the mid to upper water column and is most active during feeding times. While gentle and non-aggressive, it can be easily stressed by sudden movements, bright lighting, or aggressive tank mates.

Tank Mates

Ideal tank mates include other small peaceful tetras, rasboras, Corydoras catfish, Otocinclus, and small peaceful invertebrates. Avoid large predatory fish, aggressive cichlids, fin-nipping barbs, large loaches, and any fish large enough to eat them. The Gold Cardinal Tetra is best suited to peaceful, soft-water community aquariums with similarly sized, gentle species.

Breeding

Breeding is possible in very soft, acidic water with subdued lighting and fine-leaved spawning media. Condition adults with live foods, then introduce a pair or small group to a separate breeding tank with pH 5.0-6.0 and GH below 2 dGH. Spawning typically occurs in the early morning. Remove adults immediately after spawning, as eggs are not guarded and may be eaten. Fry hatch in 24-48 hours and require infusoria or liquid fry food initially, graduating to baby brine shrimp as they grow.

Why Buy from Tropical Fish Co

Tropical Fish Co is your trusted source for rare and specialty tetras, including the stunning Gold Cardinal Tetra. Every fish is quarantined, health-checked, and acclimatized to UK water conditions before dispatch. We provide expert guidance on soft-water tank setup, water chemistry, and compatible stocking to help you create a thriving blackwater aquarium. With fast, reliable delivery across the UK and a passion for quality fishkeeping, Tropical Fish Co is your premier destination for unique and beautiful freshwater fish.