Emerald Dwarf Danio (Danio erythromicron)
Also known as Microrasbora erythromicron or Celestichthys erythromicron, this small fish is often incorrectly referred to as Emerald Dwarf rasboras. These tiny species are closely related to Celestial Pearl Danios and thrive in similar conditions, including slightly cool water and low water flow. They tend to avoid larger tankmates and are best suited for nano-community tanks with other small, peaceful fish.
This batch consists of near full-grown adults, measuring approximately 0.75 inches in length.
| Specification | Value |
|---|---|
| Scientific Name | Danio erythromicron |
| Size (adult) | 0.75 inches |
| Water Temperature | Slightly cool |
| Flow Preference | Low flow |
| Compatibility | Small, peaceful community fish |
FAQ
What is the typical size of Emerald Dwarf Danios when they reach adulthood?
Adult Emerald Dwarf Danios grow to about 0.75 inches in length.
Are these fish suitable for community tanks?
They are best suited for nano-community tanks with other small, peaceful fish. They tend to avoid larger or more active tankmates.
What water conditions do they prefer?
They thrive in slightly cool water with low water flow.

Joe Oliver –
These danios are very active and colorful. I kept them in a 5-gallon tank with other small fish, and they adapted well. The water temperature stayed stable, and they stayed healthy for over six months.
Donna Clarkson –
Small and lively, they add a nice touch to my nano tank. I noticed they stay near the surface and prefer calm areas. Good choice for beginners with small community setups.
Nicholas Hardacre –
The fish arrived healthy and were already active. I mixed them with Celestial Pearl Danios, and they coexist peacefully. Easy to care for with minimal water changes.