It varies a bit depending on who you ask.. but generally:
pinky 1-3 days old
chub - from around 4 days old until the hair grows in
fuzzy - hair is just growing in
crawler - slightly older than a fuzzy
hopper - weaned
small/medium/large mouse is just different sizes of adult mice.
Pinky, Fuzzy/Crawler, Hopper(when they start movin around on thier feet, they hop alot- a hopper is not weaned), Weanling and Small, Med. and Large. Is the general consensus.
*Jeanne*
"To acquire knowledge, one must study; but to acquire wisdom, one must observe"