Just a question for the more experienced keepers.

I have got a collection of 19 T.s, until 5 months ago i only had 3. So I am not to sure about this, is molting seasonal? I just watched my 10th one molt in 7 days. Will they molt in winter, or might this be the last molt before winter?

Any inputs would be appreciated.

Thanks to all that so willingly share info with us newcomers!!!

My two Ts are in premolt so I also would like to know.

Thanks Goldenspider, reminded my that forgot to mention that part in my question, I also have 2, maybe 3 in premolt.

Winter tends to slow down with moulting of tarantulas.

But on average it is monthly depending on the species and the size of the tarantula.
As an example your Grammastola species take a long time to grow so the sheds become far a few between.

My Grammostola molts every 1 and a half months and its 10 cm now (I do power feed him her)

I think it depends on how much the outside climate/temperature influences the T's, like if your T's enclosure has a stable humidity and temperature year round they will most probably molt anytime.

Well that is my opinion...