my curly hair which is around 1.5 inches in lenght is living in a 6" by 3.5" container.. he's in hes burrow and i don't even see it come out even in the night. i was thinking of changing he's cage to a small deli cup measuring 3.5 " in diameter. is my current cage too big for it? should i change it's cage to the deli cup so i could see it?