Arctic char eggs are hatched within specialized hatchery facilities. The young fish remain in the hatchery until they reach about 100 g (3.5 oz), and are then transferred to tanks each capable of holding 5000 fish. Arctic char first exhibits a rapid growth spurt during this phase, reaching its market weight of 1–2.5 kg (2.2–5.5 lb) within a year. They are fed dried pellets consisting mainly of fish meal and fish oil from forage fish that are too small and bony for human consumption. Carotenoids are also added, giving Arctic char its characteristic coral colouration.