Never take frogs from the wild, or damage their ponds or habitat. These have either been bred in captivity or cannot be released back into the wild. To successfully keep frogs, you need to know how to look after them. They need clean water, and an environment which has shelter and feeding space. They also need live food, and will not readily eat dead or non-moving food items.
Tadpoles are a little easier to keep.
Their pond needs rocks for them to climb onto when they metamorphose, and areas where they can escape from the sun. To keep a frog or tadpole, you need a licence from the NSW National Parks and Wildlife Service. There are various categories of licence, depending on how hard a particular species is to keep in captivity and whether it is endangered. You will receive a log book to keep records of your animals, and information sheets on looking after your pet and getting advice when you need it. More about frog keeper licences .