 Native species of frogs have taken advantage and reclaimed residences in the new (man-made) wetlands and lakes.The eastern banjo frog, common eastern froglet and even the now endangered growling grass frog have been seen and heard in the new wetlands and around Kororoit Creek, particularly in Cairnlea.Aquatic species found in the creek include the common galaxias, short-finned eel, Australian smelt, tupong, common carp, eastern bluespot goby, and flathead gudgeon.