Hi, We are here to help you with your sick fish. But we need to know the following information before we start the treatment. :goldfish3: What is Ammonia Level? What is Nitrite Level? What is Nitrate level? What is Ph Level, Tank (If possible, KH, GH)? What is Ph Level, Tap (If possible, KH, GH)? What is the brand of test-kit used(strips or drops)? What is your water temperature? What is the size of the tank (how many gals.) and how long has it been set up? What is the name and size of the filter(s)? Is there any substrate in the tank? If so how deep? and what kind (sand, gravel)? How often do you change the water and how much? How many fish in the tank and their size? Do you use water conditioner(if so, what kind)? What do you feed your fish and how often? Is there any new fish/plant added to the tank? if so how long is the quarantine period? Is there any medications added to the tank? Describe the problems you are seeing: example grains of salt on body, bloddy streaks, frayed fins, fungus, staying at bottom, not eating, etc? Dear fish doctor, please make sure you ask those questions before you start the treatment. Thank you.