How often do spiders moult ?

Question

i dont even know if thats the right word if u know what im trying to say than please answer my question

Answer 1

It varies with the species, age, and amount of food they get.  They grow faster when food is in high supply.  I have read that Tarantula Spiderlings will molt in a weeks time if feed well, but adult females will wait years in between.

Answer 2

They shed their skin about every 6 months, less as they get older.

Answer 3

The rate depends on the type of spider(usually). Spiders preparing to molt are usually more dark colored, and less agile, since their exoskeleton is old and stiff.