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Green Reef Chromis
Please Note: Due to variations within species, your item may not look identical to the image provided. Approximate size range may also vary between individual specimen.
Green Reef Chromis (Chromis viridis)
Additional locales and sizes may be available!

Quick Stats

Care Level Easy
Temperament Peaceful
Color Form Blue, Green
Diet Omnivore
Reef Compatible Yes
Water Conditions sg 1.020-1.025, 72-78° F, dKH 8-12, pH 8.1-8.4
Max. Size 4"
Origin Indo-Pacific
Family Pomacentridae
Minimum Tank Size 30 gallons
Compatibility View Chart
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The Blue Green Reef Chromis is easy to care for, beautiful, and peaceful. In fact, Chromis viridis is one of the preferred marine reef fish amongst aquarists, regardless of their experience level. This member of the Pomacentridae family is most recognizable by its gorgeous light blue dorsal side that slowly fades into a majestic pale green belly. The Blue Green Reef Chromis is desirable not only for its beauty, but also for its peaceful demeanor (despite its designation as a true damselfish) and ability to be kept with almost all other community fish, invertebrates, and corals.

Native to reefs ranging from mid-depth to shallow lagoons of the Indo-Pacific and South Pacific, wild specimens prefer to school in large shoals amongst branching corals like Acropora. In the home aquarium, the Blue Green Reef Chromis does best in similar environments and will actively swim at all levels of the aquarium water column. In fact, a small school of Blue Green Reef Chromis comprised of at least six individuals adds a dazzling and dramatic shimmer of beauty to almost any well-established reef system.

Overall, the Blue Green Reef Chromis is very hardy and can live between 8 to 15 years in aquariums with excellent water quality. For best care, feed several times throughout the day with a varied diet of meaty foods, herbivore flakes, and frozen preparations. Vitamin-enriched foods may also help to preserve body colorations.

Some aquarists have successfully bred the Blue Green Reef Chromis in the home aquarium. Interestingly, the body color of mature males, ready to nest, changes to a muted yellow color. However, breeding success requires perfect water parameters in only the largest of non-predatory aquarium systems.

Approximate Purchase Size: Small 1/2" to 1" Medium: 1" to 2"; Large 2" to 3"

Customer Testimonials

Jeannette K Shinglehouse , PA
They are one of the most entertaining fish we have ever had in our tank. They dart in and out of the coral in a school. Color changes from blue to green depending on how the light hits them. Great community fish!!
Ben J Des Moines , IA
This fish is beautiful. I ordered a large school and they are doing well. They really get along with my Yellow Tang.
Bill J Atlanta , GA
A wonderful community fish. Very peaceful with very unique coloring. A much preferred starter fish over the other more aggressive Damsels.
Chad B Marietta , GA
The Blue Green Reef Chromis is an extremely hardy fish. It is perfect for a beginner and to start an aquarium. It is fun to watch them eat, as they dart from brine shrimp to brine shrimp. Overall a very good fish to have.
Michael P Tuscaloosa , AL
I love these fish. If you want a fish to liven up your aquarium, add a school of these. They're hardy, beautiful green, and constantly moving. I don't think they ever sleep!
Keith & Gloria B Pea Ridge , AR
Awesome under a halide light - the color of these guys is really pleasant to watch for hours! Very handsome aquarium fish. It's what one would expect to see in a reef aquarium. We bought two schools of six each. Very "new-tank" adaptable.
Brett W Hartford , CT
I got one of these and all he did was swim up and down in the corner of my 55g tank. I would get excited when he would change corners! So a few days later I purchased 3 more, they schooled, and now they all swim quite freely. Excellent coloring even under regular lights. Highly recommended, just make sure you get more than 1.
Richard L Corpus Christi , TX
With a tank life of 8-15 years this is a very hardy fish. Very easy to maintain, and started eating from day one in the aquarium. They are not shy, and will help other fish come out and be social. Great fish for beginners and very beautiful to look at. They change from white, to pink, to purple, to blue, to green. So they are very neat looking. They are very active, and very lively. I would recommend them to anyone. They are very peaceful.
Nathan K Charles Town , WV
These fish are great! I have seven that I bought all at once. They are constantly in motion. They acclimated very quickly and get along very well with my Lawnmower Blenny.
Ted R Carrollton , TX
These little guys are very pretty and entertaining to watch. Mine are especially fond of surfing the flow from the powerhead and chasing every morsel of food blowing in the current. They are very peaceful and get along well with the other tank inhabitants. All in all they are a true bargain and a great fish for beginning and experienced aquarists alike!
C M City Not Selected , LA
I have 1 blue/green and he hangs out and is best friends with my 2 clowns. He does sleep behind my overflow box and puts on pajamas (becomes very mottled). He's the first to wake in the mornings and he comes out to wake one clown then they wake the other clown. He's a beautiful little fish.
Erica R City Not Selected , IL
We love our school of seven Blue/Green Chromis. They are very friendly with each other and with our Pink Skunk Clownfish, Yellow Shrimp Goby, and Pajama Cardinalfish. They are very active and fun to watch!
Dustin L Baton Rouge , LA
Great fish that acclimates very easilly. They're colorful & always moving around. Get at least a trio though as it's awesome to watch them school.
Eric P Kempner , TX
Extremely social and peaceful fish. They really liven up the aquarium and serve a purpose by removing food particles from the water column. Very entertaining! I have 3 in a 92G and they school together regularly swimming in the current or in and out of the live rock.
Cole A Toluca
I ordered 4 of these fish and they arived health and hardy. Great fish very colorful.
Adam H Clearwater , FL
Typically everything I order from liveaquaria looks great, but these came in looking rough and beaten up. I've lost two out of the five in the last few days, which is really disappointing. However, I still trust live aquaria for my future purchases.
Ron Reid College Park , GA
I have one. He's kind of boring. I may get 2 more and see if they will become more active.
Ashley G Medord , MN
These are beautiful, sweet natured fish that are great for hobbyists at any experience level. They do great in schools and I have never seen these Chromis pick on each other or other fish. They add a child-like innocence to the tank when they flit around happily in search of tiny particles to eat. I would absolutely recommend these fish for anyone and everyone in the hobby.
Fahad A Elgin , IL
I ordered a school of 5 Chromis from and they all came in excellent health. The moment I put them in my tank, they started schooling and by the next day, they were darting around together.
Russ W Tacoma , WA
Fish that shoal together are an awesome addition to your reef tank, and the green chromis is no different. I've had at least 20 of these in my tank. Some tips from my experience, go for at least 5, less than that and they get shy, which is not natural for them. Also - it's not uncommon to lose 1 or 2 in a new batch, they stress easy, but recover quickly - when first introducing them to your tank, OVERFEED (yes I said it) for at least 3 days. This helps immensely.
Bob IA
love her
R K Seattle , WA
These have an almost irridescent glow - they range from golden to blue to green tones under the silvery fins, depending on their moods. They dart around - great fun! Easy care.
Lucas Maiola Rochester , NY
My 3 Green Reef Chromis are always front and center providing a great display of colorful entertainment. They eat like champs and get along very well with every tank mate. I will be honest, I have a very large aquarium so I purchased 10, but 6 died within the first 2 weeks. 1 more died during week 3. I may have had bad luck since I see so many other positive experiences from LiveAquaria. Loosing so many is very frustrating, but I may try to purchase them through the Divers Den in the future hoping for better quality.
1-23 of 23 testimonials

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