That barracuda might look like dinner— but 40–60% of them in the FL Keys are poisoned with ciguatera toxin and one dinner could change your life. Also not just cudas but all fish predators that feed on reef fish in shallow water. No test kits exist for fishermen. You can’t smell it. You can’t see it. Cooking or freezing won’t destroy the toxin. Symptoms of ciguatera poisoning starts with: Nausea, vomiting, diarrhea Then shift to burning skin, electric shock sensations, and cold feeling hot In se