The Emerald Dwarf Rasbora is a stunning nano schooling fish that brings a splash of colour and movement to planted aquariums. With their metallic green bodies, dark vertical bars and orange‑red fins, a group of Emerald Dwarf Rasbora creates a lively, eye‑catching display, especially against dark substrates and lush plants.
Staying very small and remaining peaceful, the Emerald Dwarf Rasbora is an excellent choice for nano tanks, shrimp aquariums and gentle community setups. They feel most secure and show their best colours when kept in a well‑planted tank with plenty of cover, open swimming space and a calm environment.
Appearance & Behaviour of Emerald Dwarf Rasbora
The Emerald Dwarf Rasbora typically reaches around 2–3 cm in length. Their key features include:
- Shimmering emerald‑green body with a metallic sheen
- Dark vertical barring along the flanks for a striking pattern
- Orange to red fins, especially on the dorsal and tail
- Slender, streamlined shape ideal for active mid‑water swimming
The Emerald Dwarf Rasbora is a schooling species and should be kept in groups of at least 8–10 fish. In larger groups, they are more confident, display better colour and show natural shoaling behaviour. They are peaceful and do well with other small, non‑aggressive fish and shrimp.
Tank Requirements for Emerald Dwarf Rasbora
To keep Emerald Dwarf Rasbora healthy and comfortable:
- Tank size: From around 40L+ for a small group, larger is better for bigger schools
- Water temperature: Approx. 22–27°C
- pH: Slightly acidic to neutral is ideal (around 6.0–7.2)
- Hardness: Soft to medium hardness preferred
A planted aquarium suits Emerald Dwarf Rasbora perfectly. Use:
- Dense planting with fine‑leaved stems and mosses for cover
- Dark substrate to make their colours pop
- Gentle filtration and moderate flow – avoid strong currents
- Floating plants or shaded areas to create a more subdued, natural feel
Regular water changes and stable parameters are important for the Emerald Dwarf Rasbora, as smaller fish can be sensitive to sudden swings.
Tank Mates for Emerald Dwarf Rasbora
The Emerald Dwarf Rasbora is peaceful and works well with:
- Other small rasboras and micro‑schooling fish
- Small tetras and peaceful nano species
- Corydoras and other gentle bottom dwellers
- Most dwarf shrimp and snails
Avoid large, boisterous or fin‑nipping fish that may stress or outcompete Emerald Dwarf Rasbora. Keeping them in a calm community will help them settle, colour up and display naturally.
Feeding Emerald Dwarf Rasbora
The Emerald Dwarf Rasbora is an omnivore and will accept a variety of foods:
- High‑quality nano pellets and fine granules
- Crushed flake foods suitable for small mouths
- Frozen or live foods such as baby brine shrimp, daphnia and micro‑worms
Offering a mix of prepared and frozen/live foods will help Emerald Dwarf Rasbora maintain strong colour, good health and natural foraging behaviour.
