You can usually tell by examining the old shed skins - but spider sexing is tricky, a bit of a black art really.
When buying a pricey spider you really don't want an adult male.
They are extremely restless, and live only to mate, as many times as possible, before they eventually die about a year later.
What most people do with adult males is "Stud" them out to people with females.
The female owners use the male to breed, and then you split the profits from the 100 or so spiderlings 50/50.
The male often gets killed or at least tagged after the mating process, but seeing as they are basically going to die soon after mating of natural causes it doesn't really matter.
Very good information on breeding loans
When buying a pricey spider you really don't want an adult male.
They are extremely restless, and live only to mate, as many times as possible, before they eventually die about a year later.
What most people do with adult males is "Stud" them out to people with females.
The female owners use the male to breed, and then you split the profits from the 100 or so spiderlings 50/50.
The male often gets killed or at least tagged after the mating process, but seeing as they are basically going to die soon after mating of natural causes it doesn't really matter.
Very good information on breeding loans