This is a common mutation that the breeder may not have noticed (and culled), because it is fairly subtle. It easily may blend into a large spawn that is common in haitiensus. It is even hard to notice in your photos, only obvious in a side view.
Sexual differences appear after about 3 inches.
Below is a young pair, male in front.
Same pair later in life, male 14", female around 11"
Sexual differences appear after about 3 inches.
Below is a young pair, male in front.
Same pair later in life, male 14", female around 11"