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Blue Grass Guppies are a distinctive variety known for their vibrant blue coloration and grass-like patterns on their fins. They are popular among guppy enthusiasts for their unique appearance and active nature. Here are some details about them:

### Appearance
- **Color**: Predominantly blue with intricate grass-like patterns on their fins, which can include shades of green and sometimes black.
- **Size**: Males typically reach about 1.2 inches (3 cm) in length, while females can grow slightly larger, up to 2.4 inches (6 cm).
- **Fins**: Males often have larger and more colorful fins compared to females, with the grass-like patterns extending into the tail and dorsal fins.

### Habitat
- **Water Temperature**: Prefer temperatures between 72-82°F (22-28°C).
- **pH Level**: Thrive in a pH range of 6.8 to 7.8.
- **Hardness**: Suitable for moderately hard water conditions.

### Diet
- **Omnivorous**: Accept a variety of foods including high-quality flake food, pellets, live or frozen foods (such as brine shrimp, daphnia, and bloodworms), and vegetable matter.
- **Supplementary Food**: Can be fed blanched vegetables like spinach or zucchini for additional nutrition.

### Breeding
- **Ease of Breeding**: Like other guppies, Blue Grass Guppies are livebearers and breed easily in captivity.
- **Mating**: Females give birth to live fry approximately every 30 days.
- **Fry Care**: Fry can typically remain in the main tank if there are sufficient hiding places, but separating them into a breeding tank can reduce predation risks.

### Tank Mates
- **Compatibility**: Best kept with other peaceful fish species like tetras, mollies, and other guppies.
- **Behavior**: Generally peaceful but males can sometimes display aggression towards each other, especially in overcrowded conditions.

### Tank Setup
- **Plants and Hiding Places**: Benefit from a well-planted tank with plenty of hiding spots, as well as open swimming areas.
- **Tank Size**: A minimum of 10 gallons is recommended for a small group of guppies, providing adequate space for their activity.
- **Filtration**: Ensure good filtration to maintain water quality, as they are sensitive to poor water conditions.

### Maintenance
- **Water Changes**: Regular water changes (about 25% weekly) are crucial to keep the water clean and maintain optimal health.
- **Health Monitoring**: Regularly observe for signs of disease or stress, such as fin rot or unusual behavior.

Blue Grass Guppies are a visually appealing and active addition to any community aquarium. Their unique color pattern and lively behavior make them a favored choice for hobbyists looking to enhance their tank's aesthetic appeal. With proper care and a suitable environment, they can thrive and bring vibrant energy to the aquarium setting.