Powdery food for SPS and LPS corals. Instruction: prepare a small container and fill it with 20ml of water from the tank. Add one spoon of AF Power Food powder and mix it for 1 minutes. Pour the content into aquarium or use syringe/pipete to feed selected coral. Use one spoon per 100L (27 US gal.) aquarium. We recommend to dose food at night or when the lights are switched off.