Black and Gold Chromis
The Black and Gold Chromis (Neoglyphidodon nigroris), often called the Yellowtail Damselfish, is a well-known and hardy species that adds a touch of bold, black-and-yellow contrast to any marine aquarium. As a juvenile, this damselfish is easily identified by its striking black or dark body with prominent white blotches. It is important to note that as this fish matures, it loses its white patches and becomes a solid dark brown or black, while also becoming aggressive and territorial. For this reason, it is best suited for an aquarium with more assertive or larger tank mates. It is completely reef-safe and will not harm corals or invertebrates.
Specifications
| Species | Neoglyphidodon nigroris |
|---|---|
| Common Name | Yellowtail Damselfish |
| Adult Coloration | Dark brown to black |
| Juvenile Coloration | Black body with white blotches |
| Aggression Level | Increases with age |
| Reef Safety | Completely reef-safe |
FAQ
Is the Black and Gold Chromis safe to keep with corals?
Yes, the Black and Gold Chromis is completely reef-safe and will not harm corals or invertebrates.
How does the coloration of the Black and Gold Chromis change as it matures?
As a juvenile, it has a black body with white blotches. As it matures, it loses the white patches and becomes a solid dark brown or black.
What kind of tank mates are recommended for this fish?
It is best suited for an aquarium with more assertive or larger tank mates due to its increasing aggression as it matures.


Ruth Wright –
I bought the Black and Gold Chromis for my 55-gallon reef tank. The fish looked great when I first received it, with bright white blotches on its body. After a few weeks, it started to lose the white patches and turned a solid dark color. It’s not the most peaceful fish, but it’s active and adds a striking visual contrast to the tank. I keep it with larger fish and it hasn’t caused any issues with corals.
Amanda Lyman –
The juvenile phase was very colorful and eye-catching. I noticed the white spots faded over time, and the fish became more territorial. It’s not for beginners, but if you have a mature reef setup with larger fish, it’s a great addition.
Peter Vance –
This fish has been in my tank for six months now. It’s still active and vibrant, even though it’s no longer showing white blotches. I’ve kept it with a group of larger tangs, and it hasn’t shown aggression toward them. The coral remains untouched, which confirms its reef-safe nature.