Your Guide to Buying and Adding a Green Chromis to Your Tank

The Green Chromis, Chromis viridis, is a popular and hardy choice for both beginner and advanced aquarists. Its calming greenish-blue hue and playful, schooling behaviour make it a favourite in many saltwater aquarium setups.

Choosing the Right Green Chromis

Selecting a healthy specimen:

• Look for lively fish with bright colours and an absence of any physical injuries.
• Check for any signs of distress or illness like erratic swimming, spots, or faded coloration.

Physical Appearance

Describing the Green Chromis:

• Has a shimmering green to blue-green colour.
• Slim, oval-shaped body.
• Can grow up to 4 inches in length.

Compatibility with Other Fish

Ensuring peaceful coexistence:

• Green Chromis are generally peaceful, especially when kept in groups.
• Ideal for community tanks with similarly tempered fish.
• While they school, avoid overcrowded conditions.

Reef Safe

Considering the coral environment:

• Fully reef-safe.
• They won’t harm corals or invertebrates.

Suitable Tank Size

Space considerations:

• Minimum of 100 litres for a small group.
• The more space they have, the better they'll display their schooling behaviour.

Water Conditions

Maintaining a healthy environment:

• Temperature: 22-26°C
• pH levels: 8.1-8.4.
• Specific gravity: 1.020-1.025.
• Regular water checks to maintain zero ammonia and nitrites, and low nitrates.

Preparing Your Tank

Setting up an ideal habitat:

• Plenty of open space for swimming.
• Some hiding spots with rock formations or coral structures for shelter.

Monitoring Behaviour

Understanding their behaviour:

• Naturally schooling fish that swim in the middle to upper areas of the tank.
• Watch for signs of bullying or stress, especially if one is singled out from the group.

Feeding Schedule

Nourishing the Green Chromis:

• Omnivorous diet, but primarily feed on plankton in the wild.
• Offer a variety of foods including marine flakes, micro-pellet food, brine shrimp, and finely chopped seafood.
• Feed 1-2 times daily in small amounts.

Adding Green Chromis to your aquarium brings a splash of vibrant colour and dynamic movement, especially when they move together as a group. Their peaceful nature makes them an excellent choice for a harmonious marine environment. Proper care and monitoring will ensure they thrive and bring joy to your aquatic display.