The best feeding time for goldfish varies depending on the season:
Spring and Summer Seasons: It is recommended to start feeding at 6-7 a.m. At this time, the sun has just shone on the fish tank, the water temperature is suitable, and the goldfish begin to have an appetite.

Autumn and Winter Seasons: The time when the sun shines on the fish tank is a bit later. It is advisable to start feeding at 7-8 a.m. In cold weather, it can be postponed to around 10 a.m.
Specific Feeding Time and Frequency:
Spring and Summer Seasons: Feed 1 to 2 times a day, and the amount of food for each feeding should be such that the goldfish can finish it within 1 to 2 hours. Avoid feeding a large amount of food in the evening. Even if the fish are obviously foraging, you should only feed a small amount of food at around 3 p.m.
Autumn and Winter Seasons: With lower water temperatures, the appetite of goldfish will decrease. It is recommended to feed them once a day, preferably around 10 a.m., and avoid feeding in the evening.
Precautions for Feeding:
Control the Feeding Amount: The amount of food for each feeding should be controlled so that the goldfish can finish it within 1 to 2 hours to prevent the feed from accumulating in the tank and deteriorating the water quality.
Avoid Feeding During High Temperature Periods: Do not feed when the temperature is too high at noon to prevent the goldfish from feeling uncomfortable due to stress reactions.
Feed at Fixed Times: Feed at the same time every day to help the goldfish develop a stable eating habit and improve their appetite and digestion ability.
By reasonably controlling the feeding time and frequency, you can ensure the health and vitality of goldfish.