Green Chromis

Chromis uiridis

Minimum Tank Volume: 208 litres
Minimum Tank Size: 55 gallon
pH Range: 8.1-8.3
Temperature Range: 24-27°C
Hardness Range: 0-0

Selecting a fish: Smaller specimens will readily adapt to aquarium life. Look for fish that are actively swimming and eating well. Avoid fish with raised scales or other signals of ill health. Avoid avoid that hide. Purchasing more than one fish try to see that they are about the same size.

Sex: A mature nesting male will be yellow.

Light: No special requirements.

Breeding: Some of the damselfish have been bred in captivity.

Size: Blue-green Chromis or Green Chromis adults can grow to 7cm ( 2.8 inches)

 

Alternative Name: Blackaxil Chromis

Difficulty: The Blue-green Chromis or Green Chromis is among the easiest of all marine fish to keep. On a scale of 1 - 5; 5 being the hardest, I would give this a 1.

Feeding: This fish will readily eat all kinds of live, frozen, and flake foods and algae. Finely chopped meaty foods (like brine shrimp) can be fed regularly. It is best to feed small amounts several times a day. In a reef situation they don't really need to be fed very often at all.

Habitat: Blue-green Chromis or Green Chromis are found throughout the Indo-West Pacific from eastern Afraca and the Red Sea to the islands of Oceania (not Hawaiian Islands). Found at depths up to 12 meters, it inhabits inshore and lagoon reefs, associated with branching corals, especially Acropora.

Behaviour: This damselfish is the exception to the rule for damsels. It is peaceful even into adulthood and can be kept together with most any other fish. The Green Chromis is by nature a gregarious fish, but in many instances is known to do well solitarily. Chromis are active swimmers and will occupy the middle to upper levels of the water column. They are non-territorial and curious fish that will explore the entire area of the tank and may repeatedly make the mistake of approaching another fish's territory. In this respect, solitary Chromis may be better suited with less aggressively territorial fish. Chromis do not respond well to harassment, as they are less likely to retaliate. Hiding in dark areas of the tank away from other fish is the first indication of harassment, stress or illness.

Chromis may also suffer harassment from other Chromis in the aquarium. In schools, Chromis often adopt a pecking order where the smallest of the group may become tormented to death. Thus the schooling issue is the subject of much debate and concern. It is often recommended that groups of Chromis be kept in schools of no less than 6, as the pecking behaviour is more broadly dispensed among the smaller members. However, aquarists have found that pairs and sometimes trios can be grouped successfully without pecking order issues.

 

aqua-fish.net