Celestial-Emerald Danio Hybrid AKA Hybrid Galaxy Microrasbora (Danio margaritatus x Danio erythromicron) – Tank Bred

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Introducing a groundbreaking cross between two of the most beloved nano fish in the hobby—the Celestial Pearl Danio (Danio margaritatus) and the Emerald Dwarf Rasbora (Danio erythromicron). This rare, tank-bred hybrid combines the iridescent, galaxy-like spotting of the Celestial Pearl with the graceful striping and shimmer of the Emerald Dwarf. The result is a small, peaceful schooling fish that glows with personality and vibrant, shimmering detail unlike anything else in your tank. This cross breed has been know to do this naturally in the wild. 

What We Love About This Fish:

• Exclusive Hybrid Lineage: First-generation cross between two highly sought-after nano species
• Spectacular Appearance: Galaxy-style spots meet subtle striping and pearlescent tones
• Perfect for Nano Tanks: Ideal size and temperament for planted aquascapes
• Peaceful Schooling Behavior: Best kept in groups of 6 or more for natural social interaction

Natural Habitat:

While this hybrid does not occur in the wild, its parent species are native to the cool, shaded, plant-rich waters of Myanmar and Thailand. Both thrive in slow-flowing freshwater habitats filled with dense vegetation and leaf litter.

Aquascaping:

• Plants: Dwarf Hairgrass, Java Moss, Cryptocoryne, Anubias Nana Petite
• Hardscape: Smooth river stones, spiderwood, and shaded hideouts
• Botanicals: Alder cones or Indian Almond Leaves help replicate natural conditions

Diet and Feeding:

Micro-predators by nature. Accepts high-quality nano pellets, crushed flakes, and frozen/live offerings like baby brine shrimp, daphnia, and microworms. A varied diet enhances coloration and activity.

Tank Mates and Compatibility:

Peaceful and non-aggressive. Suitable with other small, gentle fish such as chili rasboras, pygmy corydoras, or otocinclus catfish. Avoid larger or overly active fish that may outcompete them for food.

Shrimp Safe:

Generally shrimp-safe with adult Neocaridina and Caridina species. May opportunistically snack on tiny shrimp fry, so add dense plant cover for protection.

Breeding:

As a hybrid, breeding behavior may vary and fertility may be limited or unpredictable. We recommend treating these fish as display-only unless you’re experienced with conditioning nano species.

Recommended Tank Parameters:

• Temperature: 68° - 76° F (20° - 24.5° C)
• pH: 6.5 - 7.4
• KH: 2 - 10 dKH
• Minimum Tank Size: 10 gallons (school of 6+)

Care Guidelines:

• Diet: Micro predator. Prefers high-protein micro foods.
• Social Behavior: Peaceful schooling fish, thrives in groups.
• Origin: Tank-Bred Hybrid (NOT wild caught)
• Average Adult Size: 0.75 – 1 inch (2 – 2.5 cm)
• Average Purchase Size: 0.5 – 0.75 inch (1.3 – 2 cm)

Limited availability!
This is a rare and exclusive hybrid—perfect for collectors and aquascapers looking for something truly unique. Don’t miss your chance to own one of the first generations of this incredible nano fish.

Live Arrival Guarantee:

All Aquatic Arts fish and invertebrates come with a 100% live arrival guarantee and free email support.