Blue green chromis
Chromis viridis · Pomacentridae
Also known as Green chromis
Beginner
The one damsel that genuinely shoals peacefully — cheap, hardy and constantly moving.
In short: A blue green chromis needs at least 130 L (34 US gal), water at 24–28 °C (75–82 °F) and pH 8.1–8.4. It is peaceful, best kept in groups of 6 or more, and rated beginner to keep.
Updated
- Minimum tank
- 130 L (34 US gal)
- Temperature
- 24–28 °C (75–82 °F)
- pH
- 8.1–8.4
- Adult size
- 8 cm (3.1 in)
- Group size
- 6+
Reef & marine husbandry
- Specific gravity
- 1.023–1.026
- Reef safety
- Reef safe
- With corals
- Reef safe.
- With inverts
- Reef safe.
- Minimum in a mixed reef
- 130 L (34 US gal)
- Minimum fish-only (FOWLR)
- 130 L (34 US gal)
- Aggression
- Peaceful, but a shrinking group turns on itself — keep six or more.
- Feeding
- Twice daily.
Care requirements
- Minimum tank volume
- 130 L (34 US gal)
- Temperature
- 24–28 °C (75–82 °F)
- pH
- 8.1–8.4
- Hardness
- 8–12 dGH
- Lifespan
- 8–15 years
- Diet
- Omnivore — pellets, frozen mysis, brine.
- Care level
- Beginner
Origin & habitat
- Native region
- Indo-Pacific including Indian reefs
- Water type
- Saltwater
- Biotope
- Open water above branching corals
- Natural conditions
- Warm reef water with strong flow.
Behaviour & stocking
- Temperament
- Peaceful
- Minimum group
- 6 fish
- Swims
- Mid-water
- Good tank mates
- ClownfishTangsGobiesWrasses
- Avoid
- Large predatorsLionfish
Breeding & difficulty
- Breeding difficulty
- Advanced
- Sexing
- Males show more yellow when spawning.
- Notes
- Spawns on rock in groups; larvae rarely survive at home.
- Common ailments
- Marine ichUronema
Will it fit your tank?
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