Expert Answer

Tilapia can grow about 1 pound a year.

If artificially raised tilapia is fed with sufficient food, it can grow by more than 1 kilogram a year.

However, tilapia are not tolerant of low temperatures. When the water temperature in which they are raised is too low, they will stop growing. If the water temperature is below 10°C, tilapia may die.

If you want tilapia to grow bigger, you need to feed them more food in summer. How big is tilapia? The adult body length of tilapia is between 30-40 centimeters, but some tilapia are larger. For example, a tilapia with a length of 59 centimeters was discovered in Guangzhou, my country, but tilapia of this size is relatively rare. Artificially raised tilapia is usually sold when it reaches about 1 pound, but wild tilapia will continue to grow, so the tilapia growing in the wild will be larger. If you want artificially cultured tilapia to grow larger, the water temperature in which they live needs to be controlled above 15°C.