PolypLab Reef Primer Shot Coral Dip 45g - 1 Gallon TO BE USED AS A DIP ONLY. Not to be used in the aquarium. 45g makes 1 Gallon (4 liters) of aquarium dipping water. Reef Primer is a premium dip for your corals and frags. Use in your acclimation routine before adding new corals to your system.