Blue Diamond Guppy
The Blue Diamond guppy is a vibrant, selectively bred variety of the common guppy (Poecilia reticulata) known for its striking, deep blue coloration and brilliant shine, often with a metallic or “glowing” quality.
These hardy, peaceful, and social livebearers are easy for beginners to care for and are an excellent addition to community tanks.
Males are smaller and more colorful with elaborate fins, while females are larger and develop from males after 2 to 3 months.
| Feature | Detail |
|---|---|
| Species | Poecilia reticulata |
| Color | Deep blue with metallic shine |
| Size (male) | 2.5 to 3.5 inches |
| Size (female) | 3.5 to 4.5 inches |
| Lifespan | 2 to 3 years |
| Breeding Type | Livebearer |
FAQ
What is the difference between male and female Blue Diamond guppies?
Males are smaller and have more elaborate fins with vivid blue coloration. Females are larger and develop from males after 2 to 3 months.
How long do Blue Diamond guppies typically live?
Blue Diamond guppies typically live for 2 to 3 years with proper care.
Are Blue Diamond guppies suitable for beginners?
Yes, they are hardy, peaceful, and social, making them ideal for beginners.

Theresa Walsh –
The Blue Diamond guppies arrived healthy and active. Their deep blue color is very striking in the tank. They are easy to care for and get along well with other fish. Great for a beginner aquarist.
Jane Campbell –
I’ve had guppies before, but these are the most colorful I’ve seen. The males have a beautiful metallic shine. They stay active and don’t stress other fish in the community tank.
Dylan Walsh –
Perfect for a small home tank. The fish are lively and peaceful. After a few weeks, I noticed the females had grown larger and were quite attractive. Very satisfied with the purchase.