Molting

At about what age to T's molt the most? since i got my 3/4 inch Brazil black molted 3 times. just wondering if this is normal or what?

they molt about once a month when they are little then they slowly slowdown as they grow

Molts are determined by a number of factors. Age, temps, species, sex, amount of feeding etc. The younger they are the more often they will molt. The older they get the longer it takes to molt. Grammostola's are know to be slow growers.