O my! Well, There goes that idea of identifying them!! The little baby shrimplets I have found are bright blue, and none of the little ones have been slate colored. Some of the adults are slate-very pale blue. I have a couple that are bright Jelly blue. We will see what else pops out of this mixing. I am trying my hardest to find my camera battery so I can show you. Also for the very first time, I saw my Anacharis stems that I have in there giving off bubbles of oxygen. Coolest thing ever.