Hey Rose 🖐️🙂 these beauties absorb all their nutrients through the atmosphere, if they are attached to trees they usually get food from the bark but you can also buy a feeder spray for them to be in top condition. A spray misting 2-3 times a week will keep them nice but as you're in Australia you might want to soak them in a bowl for 5 mins every 2 weeks 🤗 lovely photos by the way 💕