The larger the fish, the higher the concentration of toxin. Fish feed and dwell at coral reef are more likely to contain ciguatoxins. When the toxin enter the blood, it may take a long time to expel the toxin out the body. Patients will become more allergic to marine food fish after the intoxication. Symptoms will be developed when they are exposed again to the toxin of an even lower concentration.
General public Eat fewer coral reef food fish.
Do not eat the roe, liver, guts, head, skin of coral reef food fish. Avoid drinking wine and eating nuts or seed products when consuming coral reef food fish. Keep a record of incoming fish for source tracing. Separate and keep fish from different sources in different fish tanks. Avoid purchasing fish which are below fair market prices as they may be caught from new fish harvest areas without any track record that the fish catch is ciguatoxin free.