The growth of the goldfish is dependent on its type and environmental conditions. Goldfish are capable of growing from about 6 to 15 inches in a short period. Tiny aquariums or little bowls can affect the speed of growth of the goldfish. They can still grow, but only very slowly. Even though this kind of environment is a little cramped for the fishes, they will still thrive and grow.
Feed the goldfish properly
The fish does not have the stomach or intestine to digest its food. You should serve them goldfish food that is highly alkaline and high in protein and not the tropical fish food that a goldfish should not consume. Goldfish are Omnivorous they can eat the plants at the bottom of the tank, bugs and fellow guppies that they share the tank with.
Goldfish is Omnivorous and needs ample food to grow healthy and faster.
Give them a spacious environment
Goldfish require ample space to spread out and swim. In compact spaces, they will grow very slowly. One full-grown fish need to have at least one gallon of water to survive. This will give the fish room to swim and explore the place it lives in. Plan and execute the aquarium space according to how big the fish will become when full-grown.
Goldfish need ample environment to grow and swim in; a full-grown Goldfish will take one gallon of water to grow in.
Water Conditions:
The water condition should not necessarily be clear water; some algae water is excellent for the goldfish to grow in. The water in which the goldfish grows needs to have some algae in it. The goldfish is not necessarily kept in clear water whether you like it or not. They like to nibble on the algae now and then as a part of their salad. As the goldfish are always hungry, this entirely natural salad helps them grow faster.
Growth of goldfish is catered by algae water as they can munch on it when hungry and grow better and faster.
Temperature:
Goldfish will thrive in the temperature ranging from 65 to 80 degrees Fahrenheit. It is a cold-water fish. But in freezing weather, the fish grows slower and hibernates for more than half of the time. In the warmer environment, the fish will grow faster in comparison to the wintery environment. In a warm environment, more beneficial insects can grow in the water; hence they will have more food to eat and grow simultaneously.
In a warm environment, goldfish will have more beneficial insects growing in the pools, and more food means ample growth of the goldfish.
In conclusion:
The more a goldfish eats, the better it grows. It need algae water and clear water is not preferable as they need to algae to snack on now and then to grow appropriately. Goldfish food should be highly alkaline and high in protein. The more space there is, the better it grows. A full-grown goldfish needs ample space to spread out and swim.