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Green Chromis
Chromis viridis
A peaceful, schooling damselfish that adds shimmering movement to a reef tank.
Care Parameters
Adult size
10 cm
Min tank
120 L
Temperature
24–28°C
pH
8–8.4
GH
8–12 dGH
Diet
Omnivore
Temperament
Peaceful
Water zone
Middle
Difficulty
Beginner
Schooling
Group of 5 or more.
Suitable Equipment
5
Common Problems
5O
Old Tank Syndrome
Water quality slowly worsens over months or years despite regular small water changes.
waterC
Cyanobacteria (Blue-Green Slime)
Slimy blue-green or dark purple patches with a foul odor.
waterF
Fish Gasping at Surface
Fish hover at the surface, breathing rapidly. A possible oxygen emergency.
fishT
Temperature Shock
Sudden temperature swings after water changes, heater failure or power cuts stress fish.
fishL
Low Filter Flow
The filter output weakens, reducing circulation and filtration.
equipment