2 bells... why different?

[Mateusz Hajdas]

These are 2 bell hatchlings from ms bell enigma and bell sunglow pairing... Both are snows. I was surprised that one was darker than the other, both were incubated at the 31,5 C* temperature for males. These are siblings just to make it clear. As far as the eyes... I couldn't take pictures of them but they doesn't look like enigma eyes. I have hatched few ms bell engimas from this pairing but none of the hatchlings looked like this (dark).



Any thoughts? Maybe it's because the hypo gene brighten up the the other one?