Hi all, just an update on how things are progressing. The colour in the juvenile shrimp is holding and are getting close to adulthood, so hopefully it will stay this way as they will be the first adult blue shrimp from this line. In other news some milk chocolate coloured shrimp that i put in a seperate tank, one has almost completely changed colour. The shrimp went from brown with a light brow line down its back to a teal colour with a ligh blue stripe. I guess this further supports what @revolutionhope said in another thread, that adult brown shrimp can change colour as they get older, both from blue to brown and vice versa. Sorry for the bad picture of the "teal" shrimp.