Guppies are relatively hardy fish and can thrive in a wide range of water parameters. However, it's important to provide them with a healthy and stable environment to ensure their optimal health and wellbeing.

Here are some tips on setting up your tank for guppies:

1. Tank size: Guppies are small fish, but they are very active and require a minimum tank size of 10 gallons (38 liters) for a small group of 5-6 fish.

2. Water temperature: Guppies are tropical fish and require a water temperature of 24-28°C to thrive.

3. pH level: Guppies can tolerate a wide range of pH levels, but a neutral pH of around 7.0 is ideal.

4. Water hardness: Guppies can adapt to a wide range of water hardness, but a moderate hardness of 150-200 ppm is recommended.

5. Filtration: A good filtration system is essential for maintaining water quality in your tank. Choose a filter that is appropriate for the size of your tank and ensure that it is cleaned regularly.

6. Decorations and plants: Guppies enjoy having plants and decorations in their tank. Live plants can help to maintain water quality and provide a natural habitat for your fish.

7. Lighting: Guppies do not require special lighting, but a moderate amount of light is recommended for the growth of plants in the tank.

8. Water changes: Regular water changes are important for maintaining good water quality and keeping your fish healthy. Aim to change 10-20% of the water in your tank once a week.

By following these tips, you can set up a healthy and thriving environment for your guppies.