Can you do anything to stop your betta fish flare their gills at you?

It is not possible to stop a betta fish from flaring their gills at you, as it is a natural behaviour. Gill flaring is a way for betta fish to communicate with each other and their environment, and it can be a sign of aggression, excitement, or stress. To reduce the likelihood of your betta flaring its gills, you can try providing it with a stress-free environment with plenty of plants, hiding places, and a suitable water temperature and pH. You should also avoid placing any other aggressive fish in the same tank, and try not to make sudden movements near the tank, as this can startle the fish.