I'm new to owning shrimp. I picked up 3 whisker shrimp about a week ago and so far so good. These guys are so cool. They have all been eating and swimming around. I feed my corydoras sinking pellets and my pleco algae wafers, which the shrimp eat also. Anyway, this morning I noticed one of them looked a bit different than the others. Inside back of his head is very red. I'm aware that's where the stomach is. I'm sharing because I don't know much about shrimp and my research about whisker shrimp only got so far. If anyone has any answers it would be appreciated Btw, my tank is due for a cleaning today so ignore the waste.