Here’s a care guide for guppies in bullet point form:

Tank Setup:

Tank size: 10 gallons or larger for a small group of guppies.
Filtration: Use a gentle filter to maintain water quality.
Heater: Maintain water temperature between 72-82°F (22-28°C).

Water Conditions:

pH level: 7.0-7.8.
Water hardness: 10-15 dGH.
Ammonia, nitrite, and nitrate levels should be monitored and kept at safe levels.

Guppy Diet:

Provide high-quality flake or pellet food.
Supplement with live or frozen foods like brine shrimp, daphnia, or bloodworms.
Feed small amounts 2-3 times a day, only what they can consume in a few minutes.

Tank Decor:

Add plants (real or silk) for hiding spots and oxygen production.
Use fine gravel or sand substrate.
Guppies appreciate floating plants for cover.

Guppy Compatibility:

Guppies are peaceful and can be kept with other community fish of similar size and temperament.
Avoid aggressive or fin-nipping species.

Breeding:

Guppies are prolific breeders; provide plenty of hiding spots for fry.
Separate fry from adults to prevent predation.
Be prepared to manage or separate the males and females to control population if needed.

Health and Maintenance:

Regular water changes (20-25% weekly) to maintain water quality.
Quarantine new fish to prevent the introduction of diseases.
Keep an eye out for common guppy ailments like fin rot or ich.

Behavior and Observation:

Guppies are active and social fish, so provide them with companions.
Observe their behavior for signs of stress or illness.
Guppies are known for their vibrant colors and fin shapes, which can vary by breed.

A note on gender: Guppies are sexually dimorphic, with males having more colorful and larger fins. If you don’t want breeding, consider keeping only one gender or ensuring a balanced male-to-female ratio.

Remember that guppies have a reputation for breeding rapidly, so be prepared for potential overpopulation or have a plan in place to manage it.