When Does a Flowerhorn Cichlid Start Developing Its Head Bump?

Most flowerhorn cichlids start developing the head bump at 2 to 3 months, with timing depending on variety, growth rate, and condition. Varieties differ: most start at a body length of 3 to 5 cm, while the Gold Flower flowerhorn is slower, starting at 7 to 12 cm. In short, the timing also depends on the tank environment, growth rate, and size.