1. Moderate density: If you want small guppy fish to grow fast, you must pay attention to the density. Too many small fish will lead to insufficient food and oxygen; If the number of small fish is too small, they will not grab food, and they will become lazy and reduce their activity. For example, if the size of the fish tank is 40 × 25 × 30, about 50-60 fish tanks can be raised.

2. Good water quality: If you want small guppies to grow fast, the water quality problem should not be sloppy. The most suitable temperature for guppy is between 22-26 ℃ and PH value is between 7-7.3. In winter, heating rods should be used to heat water. Clean water quality is very important, and good water quality can make them grow better. The water in the fish tank is changed many times, and it is good to change one fifth each time.

3. Feeding at the right time: Newborn fish do not need to be fed. Basically, we have to wait 2-3 days before feeding. During the fry period, the feeding times are about 2-3 times a day, so that the fish can be eaten within 5 minutes. Don't overfeed, just feed it once a day after two months and finish it within 20 minutes.

4. Change water reasonably: If you want peacock fish to grow fast, you must ensure regular water change. At the beginning, it is good to change water in one fifth. At the same time, pay attention to the cleaning of the fish tank, and clean up the impurities in the tank when changing water.

5. Proper light: Lack of light will leave small fish in a dark state, which will affect their appetite.

If it is polyculture, the survival rate of guppy fry is very low, so it is necessary to put the fry alone in the fish tank and isolate them before and after production. Because the small fry of guppy fish will swim a few minutes after birth, even the parent fish will swallow the small fry at this time, so it is necessary to keep them separately, otherwise the small fry will disappear in a few days.