Blue Crystal Damsel
Description
The Blue Crystal Damsel (also known as the Blue Devil Damsel or Chrysiptera cyanea) is a popular marine aquarium fish
Brilliant Color
Its electric blue body and active swimming make it a standout in any saltwater tank.
Hardy and Low Maintenance
Great for beginners—this fish can tolerate a wide range of water conditions.
Inexpensive
Compared to many marine species, damsels are affordable and widely available.
Reef-Safe
Blue damsels typically do well in reef aquariums and won’t bother corals or most inverts.
Small Size
Grows up to 2.5–3 inches, making it suitable for tanks starting at 30 gallons.
Active and Alert
Adds movement and energy to the tank, often the first to greet you at the glass.
Territorial Behavior
They can be aggressive, especially toward other small fish or newcomers.
Tank Mates
Best kept with fish that can hold their own—avoid very shy or peaceful species.
Difficult to Catch
Once established, they are fast and smart, making them hard to remove from a tank if needed.
Disclaimer for Live Aquarium Species
Live Aquarium Species
The website's content serves as general information.
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Disclaimer for Individual fish prices
Price For Individual fish
Our listed prices are for individual fish unless otherwise specified. If a product listing mentions a quantity greater than one, it will be explicitly stated.