10-20 guppies can be raised in a tank of 35 cm, because the guppies are not very big, and the guppies in adulthood are all between 4-6 cm. A 35cm long tank can meet their space requirements, so it is enough to breed 10-20 guppies. If breeders want to breed more, they can install filters and oxygen pumps in fish tanks, so that they can live more comfortably.
2. Do guppies need any equipment1. Heating rod: guppies are tropical fish, and heating rod is an essential tool to raise them well. Breeders can install a heating rod in the fish tank to keep the water temperature between 23-28 ℃. In addition, the heating rod can not only raise the water temperature, but also keep the water temperature constant.
2. Oxygen pump: Although the demand for oxygen for guppies is not particularly high, when the feeding density is too high, oxygen pump is also needed to increase oxygen. Breeders can give them oxygen for 1-2 hours every day to keep sufficient dissolved oxygen in water.
3. Filter: The breeder should install another filter for them, which can clean up impurities and feces in the fish tank and keep the water quality clean. However, guppies don't like too much water flow, so it is best for breeders to choose some filters with small water flow to avoid affecting their normal life.