When the first larvae hatched (from 20 to 24 h post-fertilization), the
water was cooled down to 28 °C within 24 h. At 2 dph, all larvae were
removed from the bottles and transferred for on-growing into 50 l
aquaria in a recirculating system at 28 ± 1.0 °C at an initial stocking
density of 20 fish l−1