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Emerald Dwarf Rasbora
Celestichthys erythromicron
Family: Cyprinidae • Origin: Various
Emerald Dwarf Rasbora (Celestichthys erythromicron) is a peaceful barb reaching 1 inches. Keep in groups of 8+. Minimum tank size: 5 gallons.
Min Tank
5 gal
Max Size
1"
Temperature
72-76°F
pH
7-8
Lifespan
2 years
School Size
8+
Swim Level
middle
Hardness
5-15 dGH
peacefulintermediateomnivoreschooling
Care Tips
- • Max size: 1 inches
- • Temperature: 72-76°F
- • pH: 7-8
- • Schooling — keep 8+ together
- • peaceful temperament — safe with community fish
Feeding: Standard omnivore diet. Accepts foods appropriate for Cyprinidae species.
Compatibility Notes: Typical peaceful Cyprinidae species.
Tank Setup & Water Parameters
Tank Requirements
- Minimum Tank Size
- 5 gallons
- Recommended Tank Size
- 8 gallons
- Swimming Level
- middle
- Minimum School Size
- 8+ fish
Water Parameters
- Temperature
- 72–76°F
- pH Range
- 7–8
- Hardness (dGH)
- 5–15
- Water Type
- freshwater
Behavior & Temperament
- Temperament
- peaceful
- Aggression Level
- 1/5
- Schooling
- Yes
- Territorial
- No
- Fin Nipper
- No
- Predatory
- No
- Diet Type
- omnivore
- Growth Rate
- moderate
Typical peaceful Cyprinidae species.
Breeding
- Breeding Type
- egg layer
- Breeding Difficulty
- moderate
- Lifespan
- 2 years
Ideal For
5 gallon
Compatible Tank Mates
View all →
Black Neon Tetra
Hyphessobrycon herbertaxelrodi
73-81°FpH 5.5-7.510+ gal
peacefulschooling 6+1.6"
Serpae Tetra
Hyphessobrycon eques
72-82°FpH 6-7.520+ gal
semi-aggressiveschooling 6+1.75"
Black Skirt Tetra
Gymnocorymbus ternetzi
70-82°FpH 6-7.515+ gal
peacefulschooling 5+3"
Guppy
Poecilia reticulata
72-82°FpH 6.8-7.810+ gal
peacefulschooling 3+2.5"
Endler's Livebearer
Poecilia wingei
72-82°FpH 6.5-85+ gal
peacefulschooling 3+1.5"
Platy
Xiphophorus maculatus
70-80°FpH 7-810+ gal
peacefulschooling 3+3"
Similar Species
Five Banded Barb
Desmopuntius pentazona
72-82°FpH 5.5-710+ gal
peacefulschooling 6+2"
Snakeskin Barb
Desmopuntius rhomboocellatus
72-82°FpH 6-710+ gal
peacefulschooling 6+2"
Glowlight Danio
Celestichthys choprae
72-79°FpH 6.5-7.55+ gal
peacefulschooling 8+1.2"
Dwarf Rasbora
Boraras maculatus
72-79°FpH 5.5-75+ gal
peacefulschooling 10+1"