[header] How to breed tarantulas [title] Get a mature pair of tarantulas. [step] This can be a tricky part unless they are all mature. Males that are mature will have mating hooks on their first pair of legs and females have a flap of skin (spermacae) between their book lungs. 
[title] Have the female in a larger cage than usual and leave her to settle down [title] Once she has settled down feed her a little bit more often. [title] About a week before the pairing, put the male in a smaller container and make sure it is concealed.