Guppies are very hardy and they can accept a wide range of water parameters. However, to keep them healthy the ideal would be to keep them in the following conditions:
Water temperature: 22-28 °C
Water pH: 6.8-7.8
Water hardness (dGH): 8-12
0 ppm ammonia, 0 ppm nitrites, maximum 10 ppm nitrates
Guppies prefer harder water. Usually the water hardness increases with the pH level. In most areas the tap water has a pH of 7.6, which is perfect for keeping guppies.
Guppies accept a high variety of food. You can give them veggie flakes, spirulina tabs, frozen food, live food, even raw vegetables. When you are feeding your guppies, make sure you offer them a variety of food in order to keep them healthy and colourful.
Feeding them once a day is enough. Avoid overfeeding. Offer them only the amount of food they can eat in about one minute.
Overfeeding is the most common problem of fish death. Feeding your fish too much food, will result into ammonia spike, which is highly toxic for your fish.
