Young frogs need a constant supply of food. Just keep food in with them and as long as they are not getting overweight or lethargic you should be fine. Also, they are probably all Indonesian. The name magically changes to Australian as soon as they are imported because people are preferring to buy CB over WC. Indonesians are WC and Australians are CB. Most are Indonesian, so you really never know what you are getting and a fecal exam is in order for all new frogs.