Green Chromis - South Pacific

Chromis sp


(7 Reviews)

Green Chromis - South Pacific

Green Chromis - South Pacific

Chromis sp


(7 Reviews)

Green Chromis - South Pacific


Size: <1.25"
$14.99
$8.99

Green Chromis - South Pacific


Size: 1.25 - 2.25"
$44.99
$31.99

Green Chromis - South Pacific


Size: 2.25 - 3.25"
$53.99
$40.99
Additional locations and sizes may be available in the future.

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Green Chromis - South Pacific Care Facts

Care Level: Easy
Temperament: Peaceful
Diet: Omnivore
Reef Safe: Yes
Minimum Tank Size: 30 gallons
Max Size: 4 inches

Green Chromis (Chromis viridis): Vibrant Mid-Water Reef Fish

The Green Chromis, native to the Indo-Pacific region, flourishes in coral-rich coastal waters and displays stunning blue-green iridescent coloration that intensifies under proper aquarium lighting. These active mid-water swimmers make excellent additions to reef aquariums when their social requirements are accommodated.

Habitat and Reef Compatibility:

Originating from Indo-Pacific coral reefs, Green Chromis thrive in well-structured reef environments with ample swimming space and rockwork territories. They are completely reef-safe, showing no interest in corals or invertebrates, making them ideal for established reef systems.

Size, Lifespan, and Characteristics:

  • Adult Size: 3-4 inches maximum
  • Lifespan: 8-15 years with proper care
  • Sexual Dimorphism: Minimal differences between males and females
  • Activity Level: Constant mid-water swimming and active feeding behavior

Social Behavior and Tank Requirements:

Green Chromis exhibit hierarchical social dynamics. Two approaches are successful:

Single Specimen Approach (30-40 gallons): Individual Green Chromis thrive in community reef tanks, often developing interactive personalities and integrating peacefully with diverse tank mates. This eliminates social stress while maintaining their vibrant activity.

Large School Approach (100+ gallons): For aquarists with spacious systems, schools of 8+ individuals can display natural schooling behavior when provided with extensive rockwork and proper territory establishment.

Note: Small groups (2-6 individuals) often experience social stress due to hierarchical dynamics and are not recommended regardless of tank size.

Diet and Feeding:

Green Chromis are planktivorous in nature, readily accepting:

  • High-quality marine pellets and flakes
  • Frozen mysis shrimp and enriched brine shrimp
  • Marine copepods and zooplankton
  • Feed 2-3 times daily in small portions for optimal health

Tank Requirements:

  • Single Specimen: 30-40 gallon minimum
  • School Setup: 100+ gallons with complex rockwork
  • Water Parameters: pH 8.1-8.4, Salinity 1.024-1.026, Temperature 74-78øF
  • Environment: Moderate flow with open swimming areas and hiding spots

Aquaculture Availability:

Green Chromis have been successfully bred in captivity but are primarily available as wild-caught specimens.

Compatible Tank Mates:

For Single Specimens: Clownfish, Cardinalfish, Royal Gramma, Fire Gobies, peaceful wrasses, and most reef-safe community fish.

For Schools: Large peaceful fish that occupy different water columns - tangs, large angelfish, bottom-dwelling species.

Coloration Development:

Juveniles display translucent green coloration that develops into vibrant blue-green iridescence with proper nutrition and lighting as they mature.

Ideal for: Reef aquarists seeking active, colorful fish who can accommodate either single specimen or large school requirements.

Very skittish but I think it helps having a king to follow around hippo almost same size eating well thanks


Reviewed by: Paul Taylor on Jan. 12, 2026

Very healthy. Good color.


Reviewed by: Susan Mink on Dec. 14, 2025


Reviewed by: Kenneth Holtan on Oct. 8, 2025

Grouped up with 4 others loving it


Reviewed by: Andrew Ownby on Sept. 15, 2025


Reviewed by: Kerry Drayton on Aug. 31, 2025

These guys arrived strong and healthy!


Reviewed by: Kenneth G Nault on May 28, 2025


Reviewed by: Anies Henin on April 27, 2025


Reviewed by: Michael Raciti on April 22, 2025

Vary healthy


Reviewed by: Shane Gilley on March 31, 2025


Reviewed by: Daniel Victoria on March 23, 2025


Reviewed by: Roque Palomo on March 17, 2025

Tons of energy


Reviewed by: William Welch on March 9, 2025


Reviewed by: Zackary Schumacher on March 5, 2025


Reviewed by: Brian Asbridge on Feb. 3, 2025

Lively n pretty


Reviewed by: Lisa Brothers on Jan. 6, 2025


Reviewed by: Emmanuel Scigliano on Dec. 27, 2024


Reviewed by: Rob Lorence on Dec. 22, 2024


Reviewed by: Jane Tutton on July 24, 2024

Alive and well.....


Reviewed by: Lazar Jones on July 16, 2024


Reviewed by: Jessica Longan on July 3, 2024

Constantly swimming, acclimated fine


Reviewed by: Raymond Lardani on May 12, 2024

Nice and colorful


Reviewed by: Shaun Hale on May 2, 2024

These fish effortlessly add movement to your tank. They work great in schools age have a beautiful iridescent color. They are great tank mates.


Reviewed by: Carrie Smith on April 22, 2024

Very active and packaged individually. Well done.


Reviewed by: Charles Hrosik on March 25, 2024

Beautiful active fish.


Reviewed by: Carrie Smith on March 14, 2024

This lil guy was swimming around like it was HIS tank the moment I let it out of the bag. Amazed at how well everything showed up!!


Reviewed by: Corey Jones on March 6, 2024

Very healthy and happy little fish.


Reviewed by: Sean Boyer on Feb. 18, 2024


Reviewed by: Michael Checkley on Feb. 14, 2024


Reviewed by: Ishaan Patel on Jan. 30, 2024

Beautiful fish for the price fast shipping


Reviewed by: Richard Staats on Jan. 29, 2024

Very active and healthy


Reviewed by: David Goodwin on Jan. 1, 2024


Reviewed by: Robert Pilny on Nov. 5, 2023


Reviewed by: Charles Tingle on Oct. 23, 2023

Really adds nice color to the tank.


Reviewed by: Kim Smith on Oct. 22, 2023


Reviewed by: Gary Vice on Sept. 28, 2023


Reviewed by: Matt Reese on Sept. 24, 2023

Make great addition to tank. A lot of movement


Reviewed by: Kim Smith on Sept. 13, 2023

Beautiful fishes.


Reviewed by: J.P. Chen on Aug. 27, 2023


Reviewed by: Andrew Zeigler on Aug. 14, 2023


Reviewed by: J.P. Chen on Aug. 13, 2023

Pretty in tank


Reviewed by: Kim Smith on Aug. 7, 2023

Eating and seem to be doing well just tiny.


Reviewed by: Donald Roman on July 13, 2023

They are a beautiful color and swim all over in the tank. They are fun to watch.


Reviewed by: Lisa Davis on July 8, 2023

They are doing great.


Reviewed by: Mark Smith on July 4, 2023

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