Hi! I was hoping someone could help me... My dwarf crayfish has slowly started losing colour since the summer but seemed happy. I spoke to the person I bought my crayfish from and they said the might just be old because they start to lose colour as they are aging? Lately, the crayfish doesn't move around a whole lot and likes to hang out in one spot of the tank. Sometimes I see it very active and sometimes barely moving. I have two neon tetras in the aquarium and they are super happy. I've checked my water and the levels seem to be good as well as the temperature. I've had the crayfish all year and it has moulted several times and grown a lot. I just don't understand what's wrong. Any help/advice would be appreciated.