Purpose the research to know influence giving leaf durian infusedto anesthesia process gurami fish with weight 100-150 gr usepredetermined dosage by upper threshold test and lowerthreshold test. Then, use formula EC-100 (EffektivityConsentrastion) fainting time conscious timefish. On among others concentrate 1000ppm,2500ppm, 5000ppm 7500ppm. That at concentration7500ppm is because die soakingle...