Emerald Dwarf Rasbora (Celestichthys erythromicron)

Emerald Dwarf Rasboras are one of the most beautiful nano fish for planted aquariums. Their shimmering emerald-green stripes combined with bright orange fins create an incredible contrast that really pops in aquascaped tanks.

These peaceful micro fish are perfect for nano aquariums, shrimp tanks, and planted community tanks. They are active shoaling fish and display their best colors when kept in groups.

Quick Facts

• Scientific Name: Celestichthys erythromicron

• Common Name: Emerald Dwarf Rasbora / Emerald Dwarf Danio

• Origin: Lake Inle, Myanmar

• Adult Size: ~0.8–1 inch (2–2.5 cm)

• Temperament: Peaceful, shy nano fish

• Tank Size: 10 gallons or larger

• Group Size: 6–10+ recommended for best behavior

• Lifespan: 3–5 years with proper care

Aquarium Care

Emerald Dwarf Rasboras prefer planted aquariums with plenty of cover. They feel most comfortable in well-established tanks with gentle filtration and stable water parameters.

Water Parameters

• Temperature: 68–76°F (20–24°C)

• pH: 7.0–8.0

• Water Hardness: Soft to moderately hard

These fish are omnivores and will accept:

• Micro pellets

• Crushed flakes

• Frozen foods

• Live foods such as baby brine shrimp or daphnia