Goldf ish Susie will be fine. The northern beaches are notorious for ticks we used to pull them off all the time when we lived in Avalon even with frontline every two weeks . We use it up here too as our Jack Russell had one recently and was in hospital. We also have the bats to contend with. So long as doggies are happy and don't lose there sense of smell they will be fineLovely pic.Gert