In my C.O. tank there are very very small insects "flickering around". they are approximately 1/64 of an inch to 1/32 of an inch. They are pure white and congregate on my java moss. half of their length is composed of what seems to be an ultra thin tail. My ghost shrimp has taken a liking to stalking these things. Are they brine shrimps? on the largest one i saw, it appeared to be vaguely lobster shaped. can you see Daphnia? I have no idea what they are or what their presence in my tank means. Is it possible they came in on a plant(even though I haven't bought any plants in 2 months and i just found them today)? Could they be some kind of parasite? Please give me a heads up if you know what im talking about....