Blue Diamond Discus - 3 inch
Aquarium Fish
Blue Diamond Discus is a premium freshwater cichlid admired for its smooth round body and rich metallic blue coloration. This 3 inch specimen suits well-maintained discus aquariums…
The Blue Diamond Discus is one of the most admired discus varieties for its clean, uniform blue body colour and classic round profile. At around 3 inches, this juvenile specimen is ideal for hobbyists building a dedicated discus setup or adding a standout fish to a peaceful warm-water community of compatible tank mates. Its calm movement, regal shape and striking metallic sky-blue to deep cobalt tones make it a favourite among serious freshwater keepers.
Discus are best kept in stable, clean aquariums where water quality, temperature and feeding routine are maintained carefully. Blue Diamond Discus especially shine in neat display tanks with open swimming space, gentle filtration and a stress-free environment. When settled properly, they show confident behaviour, strong appetite and excellent colour depth.
Key Features
- Appearance: Selectively bred discus with a near-solid blue body, rounded disc shape and graceful finnage.
- Size: Supplied at approximately 3 inches, a good juvenile size for growing out in a stable aquarium.
- Colors: Metallic sky-blue to deeper cobalt shades depending on mood, lighting and overall health.
- Lifespan: With proper care, discus can live for many years in a well-managed freshwater aquarium.
- Temperament: Generally peaceful and shy, best kept with calm tank mates that enjoy warm water.
- Water Type: Freshwater species that prefers warm, clean and stable conditions.
Care Requirements
- Tank Size: A minimum of 150 litres is recommended for a small group, with larger tanks preferred as discus grow and for better water stability.
- Water Parameters: Ideal temperature is 28-30°C with pH around 6.0-7.2. Stability is more important than chasing exact numbers.
- Diet: Feed a varied high-quality diet such as premium discus granules, pellets, frozen foods and other protein-rich options in measured portions.
- Tank Mates: Best with peaceful warm-water companions such as certain tetras, peaceful bottom dwellers and other discus of similar size.
- Care Level: Better suited to intermediate or advanced aquarists because discus require consistent maintenance and excellent water quality.
- Filtration: Use efficient biological filtration with gentle flow. Strong current can stress discus, especially juvenile fish.
- Water Changes: Regular partial water changes are important to maintain low waste levels and support healthy growth and colour.
- Care Tips: Avoid sudden changes in temperature, overcrowding and aggressive tank mates. Quarantine new arrivals whenever possible before introducing them to a display tank.
Blue Diamond Discus are an excellent choice for aquarists who value elegance, colour purity and classic discus form. In a calm, warm and well-maintained aquarium, this variety develops into a stunning show fish that becomes the visual highlight of the tank.









