We anglers always try to release fish in good health, and Propolis is an excellent tool for this. It is a natural liquid produced by bees with antibiotic and antimicrobial properties, ideal for treating wounds or other injuries on the fish's mouth, cuts, ulcers, and abrasions on the body or fins. Propolis creates a waterproof seal over any lesion, preventing bacterial penetration and helping to speed up healing times. It is very easy to apply: using the nozzle on the bottle, simply apply an adequate dose to the injured area and, before releasing the fish, pour some water over it so the propolis does not harden.