I have a female Cherry Shrimp that I've had for 3 months. Before today she was acting like a normal shrimp. This morning I looked in tank and noticed that she wasn't as active as normal and her face (not a shrimp anatomy expert) looks odd. Monthly water changes of 30%, 8 other Cherry Shrimp in tank that at doing just fine, 3 Guppies, 6 Ember Tetras, and a Pleco as tank mates. Water parameters checked 2 days ago, all normal. Nitrates, nitrites, ammonia all zero. PH is 7.4. Do shrimp get fungal infections of some sort, is she just trying to molt? Help!