Description
The Maalan Tiger Rainbow, scientifically referred to as Melanotaenia eachamensis from Maalan Creek, is a striking and rare freshwater rainbowfish native to northern Queensland, Australia. Known for its vibrant tiger-like barring and iridescent sheen, this species is a prized specimen among rainbowfish enthusiasts and conservation breeders. Due to its limited natural range and conservation status, the Maalan Creek form of M. eachamensis is best kept in species-focused aquariums that replicate its clear, cool upland stream environment.
Features of Maalan Tiger Rainbow – M. eachamensis
• Reaches up to 9–10 cm in length when fully grown
• Displays bold, vertical tiger stripes across a silvery to golden body
• Males exhibit more intense coloration and extended dorsal fins
• Peaceful and active schooling species
• Requires high water quality and well-oxygenated conditions
The best aquarium size for Maalan Tiger Rainbow
A minimum tank size of 150 litres is recommended for a small school of 6–8 individuals. Longer tanks (at least 90 cm in length) are preferred to accommodate their constant swimming and social behaviour. Larger groups enhance natural displays and reduce stress.
Tank Mate Compatibility for Maalan Tiger Rainbow
• Boesemani Rainbowfish
• Empire Gudgeon
• Forktail Blue-eye
• Australian Desert Goby
• Riffle Shrimp
Diet for Maalan Tiger Rainbow
This omnivorous species thrives on a varied diet of high-quality flake food, micro pellets, frozen bloodworms, daphnia, and live baby brine shrimp. Occasional supplementation with vegetable-based foods such as spirulina flakes supports digestive health and enhances colour vibrancy.
Aquarium Setup Maalan Tiger Rainbow
Aquarium Filtration
Use a strong, oxygenating filter such as a hang-on-back or external canister unit. The species prefers clean, flowing water with low organic waste and stable parameters.
Aquarium Plants
Incorporate hardy, flow-tolerant plants such as Vallisneria, Hydrilla, or Water Sprite. Floating plants can help diffuse light and provide cover without reducing oxygenation.
Aquarium Lighting
Moderate to bright lighting enhances their natural iridescence. Use a full-spectrum LED light to mimic daylight conditions without overheating the water.
Aquarium Heating
Maintain water temperatures between 20°C and 24°C. Avoid sudden fluctuations, and use a reliable heater with a thermometer to monitor conditions closely.
Aquarium Substrate
Use fine gravel or sandy substrates to mimic natural creek beds. Darker substrates help contrast the fish’s markings and reduce stress.
Aquarium Decorations
Add smooth rocks, driftwood, and structured hardscape to create flow breaks and hiding spaces. Ensure open swimming areas remain for schooling behaviour.
