Prodibio Coral Vits 30/vialsA Total Multivitamin for Corals Hyper Concentrated Solution of Vitamins for Coral Heath Helps Corals Recover After Fragging 1 Box Treats up to 1500 Gallons Coral Vits is a hyper concentrated solution bringing together all the vitamins necessary for the growth of corals in reef aquariums. Corals, fish, and invertebrates are not capable of synthesizing all the vitamins they need in sufficient quantities on their own; these vitamins must come from food