my coral banded shrimp molted within the first week of getting him. since then he molts about every 3-5 weeks. he starts looking a bit dirty when he is about to molt... and then you wake up in the morning and he is all clean again and there's his molted skin in the corner somewhere!
he also tries to catch my clownfish.. by like lunging at them. but sometimes he has them cornered and never hurts them, i think he is just trying to show his dominance. the clownfish arent scared of him though. coral banded shrimp are very entertaining to watch!