Korallen Zucht ZEOfood Plus 50ml - Works in harmony with ZeoBak to reduces nitrate and nitrite. ZeoFood can also be used in aquariums where ZeoBak is not used to substantially accelerate the growth of beneficial bacteria. This forms the basis of biological recovery and promotes coral coloration in nutrient-poor aquariums. ZeoFood contains many elements including vitamins and amino acids which are utilized by corals. Dosage: 1-2 drops per 100 liters per day. Alternatively, 2-3 ml per 1000l. Dosage can be increased depending upon bio-load and stocking density of corals.