brichardi spot on head?

[krap101]

im pretty sure their not sick, but i moved my tank across ther room and i kept around.. 5" of water in there so i could move it. after the move (i think) they had these dark blue spots on their heads. some of the babies have it too. is it like genetics that are just showing up? some sort of bruise? or like..

 

[Rach101]

I have no clue, but is it possible its maybe stress? thats all I can really think of.

 

[krap101]

well it was about a month ago. and theyve had another batch of babies since, so i dont think its stress.