It is going to vary alot from animal to animal... I have to 08 females both from the same breeder born relatively close time wise to each other, the lemon pastel female is 600grams, and the black pastel female is just over 1300grams.....I have been told that some morphs tend to feed more consistantly, and grow better the two that I have heard that about is Spider and black pastel, and from my xperience that shows true (my huge 08 black pastel fem, and two 09 spider females that I aquired in early nov, as very young hatchlings, both doubled in weight between nov and dec, also doubled again from dec and jan,) Dont know its going to be hard to find a consistant growth weight.