The red cherry shrimp is a non-aggressive shrimp. They are active throughout the day, and can be seen grazing on algae, aquarium décor or the sides of the tank, hunting detritus among the gravel, and sometimes even mating. Periodically a shrimp will shed its exoskeleton, leaving an empty white ghost of itself caught in the plants or drifting around the tank. This should be left in the tank, as the shrimp will eat it to recover the valuable minerals it contains.