Dwarf Emerald Rasbora (Microrasbora erythromicron)

Dwarf Emerald Rasbora (Microrasbora erythromicron)

The Dwarf Emerald Rasbora is a vibrant nano schooling fish prized for its striking emerald-green body with subtle striping and red/orange accents. Native to lakes and streams of Myanmar, this peaceful species is ideal for planted tanks, nano setups, and aquascapes.

🔑 Care & Requirements

• Size: ~1 inch (2.5 cm)
• Temperament: Peaceful, schooling
• Tank Size: 10+ gallons recommended
• Diet: Omnivorous – micro-pellets, crushed flakes, and frozen/live micro foods
• Water Parameters:
• Temperature: 72–78°F (22–26°C)
• pH: 6.5–7.5
• Hardness: 3–12 dGH

Best Tank Mates (Peaceful Nano Fish)

• Chili Rasboras – Similar size and temperament
• Harlequin Rasboras (smaller groups in 20g+)
• Ember Tetras – Bright color, very peaceful
• Pygmy Corydoras – Gentle bottom dwellers
• Otocinclus – Great algae helpers
• Clown Killifish – Peaceful top swimmers

🦐 Great With Invertebrates

• Neocaridina Shrimp (adult shrimp usually safe)
• Amano Shrimp
• Nerite Snails
• Mystery Snails

⚠️ They may snack on baby shrimp fry.

❌ Avoid These

• Larger tetras
• Barbs (fin nippers)
• Aggressive gouramis
• Cichlids
• Fast, boisterous fish

They can easily be outcompeted for food.

🐟 Ideal Setup

• Tank size: 10–20 gallons
• Group size: 8+ (they color up better in larger groups)
• Heavy planting, floating plants, and darker substrate help them feel secure.

❓ FAQ

Q: Are Dwarf Emerald Rasboras good for beginners?
A: Yes! They’re hardy and thrive in stable, well-planted aquariums.

Q: How many should I keep together?
A: Groups of 6 or more will help them feel secure and display natural schooling behavior.

Q: Are they safe with shrimp?
A: Yes, they’re peaceful and safe with most dwarf shrimp and snails.

Q: Do they need live plants?
A: Highly recommended! They love planted tanks and lush aquascapes.

Q: Are they rare?
A: Yes, they’re considered a rare and beautiful nano species prized by aquascapers.