I saw the picture of the blue crawfish and it made me think... I have 4 ghost shrimp in my tank and one of them has what appears to be green colored eggs on the under side of "its" tail. Could they be eggs? If they are eggs should I do anything special? I do not know the first thing about these little guys except that they are scavengers and are quite funny to watch (I drop a few shrimp pellets in the tank and they come scurrying out and steal them!)