The Galaxy Blue Tail Guppy is a striking variety known for its vibrant blue coloration and distinctive tail pattern. Here’s a detailed overview:

1. **Appearance**:

   - **Body Color**: The Galaxy Blue Tail Guppy features a base color that is typically a bright, vivid blue. This color is often iridescent or metallic, giving the fish a shimmering appearance.

   - **Tail**: The tail is a key feature, often displaying a bright blue hue with patterns that might resemble stars or galaxies, adding to its unique appearance. The tail can be large and flowing, contributing to its overall visual appeal.

   - **Pattern**: The “galaxy” pattern usually includes small, contrasting spots or speckles on the body or tail that create a starry effect, enhancing the fish's aesthetic.

2. **Size**:

   - Galaxy Blue Tail Guppies generally grow to about 1.5-2 inches in length.

3. **Temperament**:

   - These guppies are peaceful and social, making them suitable for community tanks with other non-aggressive species.

   - They are active swimmers and prefer to be kept in groups.

4. **Water Conditions**:

   - **Temperature**: 72-82°F (22-28°C)

   - **pH**: 6.8-7.8

   - **Hardness**: Moderately hard water is preferred.

   - **Environment**: They thrive in clean, well-oxygenated water. A well-planted tank with ample swimming space and hiding spots is ideal.

5. **Diet**:

   - **Basic Diet**: High-quality flake or pellet food formulated for guppies.

   - **Supplements**: Live or frozen foods like brine shrimp, bloodworms, and daphnia can enhance their coloration and overall health.

   - **Variety**: Providing a varied diet helps ensure they receive all necessary nutrients.

6. **Breeding**:

   - **Livebearers**: Galaxy Blue Tail Guppies give birth to live fry.

   - **Reproduction**: Females can produce a brood of 20-30 fry approximately every month.

   - **Fry Care**: To maximize fry survival rates, separate them from adult fish or provide plenty of hiding spots in the tank.

7. **Care**:

   - **Maintenance**: Regular water changes, good filtration, and monitoring of water parameters are essential.

   - **Health**: A stable environment and balanced diet help prevent diseases and maintain vibrant coloration.

8. **Community Tank Compatibility**:

   - Ideal tank mates include other small, peaceful fish such as tetras, rasboras, mollies, and other guppies.

   - Avoid larger or aggressive fish that might stress or prey on them.

If you have any more questions or need additional details about their care, breeding, or tank setup, feel free to ask!