Black Bar Chromis (Pycnochromis retrofasciatus)
The Black Bar Chromis, Pycnochromis retrofasciatus, is a small, attractive marine damselfish with a yellow to cream body, bright eye detail and a bold black vertical bar near the tail. Still widely sold as Chromis retrofasciata, this species is also known as the Black-bar Chromis or Black Bar Puller. It is a lively, reef-safe fish that does best in a mature marine aquarium with branching rockwork, open swimming space and peaceful to moderately active tank mates.
Common Name
Black Bar Chromis, Black-bar Chromis, Blackbar Chromis, Black Bar Puller.
Scientific Name (Latin)
Pycnochromis retrofasciatus
Still widely traded as Chromis retrofasciata.
| Key Features | Details |
|---|---|
| Body Color | Yellow to cream |
| Distinct Marking | Bold black vertical bar near the tail |
| Eye Detail | Bright eye color |
| Behavior | Lively, reef-safe, peaceful to moderately active |
| Preferred Habitat | Mature marine aquarium with branching rockwork and open swimming space |
FAQ
What is the typical size of a Black Bar Chromis?
The Black Bar Chromis is a small fish, typically reaching about 3 to 4 centimeters in length.
Is the Black Bar Chromis compatible with other marine fish?
Yes, it is reef-safe and works well with peaceful to moderately active tank mates in a mature marine aquarium.
What kind of tank setup is best for Black Bar Chromis?
A mature marine aquarium with branching rockwork, open swimming space, and adequate hiding spots is ideal.
Simon Kerr –
Added a Black Bar Chromis to my 120-liter reef tank last month. It’s very active and adds a nice contrast with the yellow body and black bar. The fish seems healthy and stays in the open areas without showing aggression. Works well with my clownfish and small gobies.
Rebecca MacLeod –
The fish arrived quickly and looks exactly as described. It’s vibrant with a clear black bar near the tail. I keep it in a well-established tank with live rock and it’s been swimming freely for over two weeks now. No signs of stress.
Lisa Manning –
Great addition to my marine setup. The coloration is bright and the fish is very curious. It doesn’t bother other species and enjoys the open space. I appreciate the clear description and accurate representation.