To help goldfish grow rapidly, you need to pay attention to the following points:
Choose the Right Breed: Different goldfish breeds have different growth rates. Selecting a breed with a relatively fast growth rate is crucial.

Provide Ample Food: Goldfish need to consume food equivalent to 3% of their body weight each day. Ensure an adequate food supply.
High - Quality Food: Opt for high - quality goldfish feed that is rich in nutrients, which helps with rapid growth.
Maintain Clean Water Quality: Regularly change the water in the fish tank. Use a filter or clean the waste and uneaten food at the bottom of the tank regularly to keep the water quality in good condition.
Optimal Water Temperature: Goldfish grow at different rates under different water temperature conditions. The suitable water temperature range is 18 - 26 degrees Celsius.
Adequate Lighting: Appropriate lighting can promote the growth of goldfish. You can use an aquarium light to provide stable illumination.
Avoid Stress and Scaring: Minimize the stimulation of environmental changes on goldfish. Keep the fish tank or aquarium quiet and stable.
Control Stocking Density: Avoid over - crowded stocking to ensure that goldfish have enough space to swim, rest, and grow.
Regularly Check Health Conditions: Regularly examine the health of goldfish to detect and treat diseases in a timely manner.
Proper Exercise: Help goldfish consume energy through swimming or by using an electric fish tank pump to promote their growth.
In addition, choosing the right aquarium and its arrangement are also important:
Aquarium Selection: Based on the type and number of goldfish you want to raise, choose an appropriate aquarium to ensure that each goldfish has sufficient space.
Decoration Arrangement: Add appropriate decorations and plants to the aquarium. While beautifying the environment, be careful to avoid harm to goldfish from sharp or small objects.
Temperature Regulation: Goldfish are sensitive to temperature changes and require a stable and suitable temperature to maintain their health.
Install a Filtration System: Use a proper filtration system to keep the water clean and prevent the accumulation of harmful substances.
Adequate Oxygen Supply: Ensure sufficient oxygen in the water by increasing the water surface area and using oxygen equipment to meet the breathing needs of goldfish.
Food Feeding: Select suitable food to ensure a balanced diet and promote the healthy growth of goldfish.