I've got several ghost shrimp in my 36 gallon. I had bought 10 and don't know how many are left. I'm guessing 4 or 5. Recently I noticed 2 of the smaller ones bodies are turning white. Is this a sign of some sort of sickness or stress? I thought maybe they were dying but have been this way for about a week now since I noticed them. Used to my shrimp would scurry to the front of the tank during feeding but they don't do it as much anymore. I still see a few in the tank if I look real hard (heavily planted 1/4 cylinder) and a couple will usually come out of hiding when I feed but they're not as active as they used to. thanks, Kyle