You are aware that spotted marsh frogs and striped marsh frogs are different species? though I expect you are just talking about their particular patterns? What exact species of frog are we talking about? Limnodynastes peronii (Striped MF)or Limnodynastes tasmaniensis (Spotted MF).. but as long as you have the same species, they are both easy to breed, just place them in a plastic tub out in the rain, make sure the tub has an open meshed lid that is secure and an overflow vent so it does not fill up to the lid. Breeding frogs and raising tadpoles is alot of work, and you need to know a fair bit of info, I suggest you use your search function or get some books on the subject.... If your female is going into amplexus with your "male" I'd suggest you may have the sexes of your frogs mixed up.