So I think one of my clownfish has developed ich (white spots on the head and a couple on the body) and wont eat out: Can anyone tell me what the process should be for me to treat it? I have a 5 gallon tank I could set up as a hospital tank with no lid. What else would I need? I assume heater, thermometer, a HOB filter I probably have hanging around the house somewhere, PVC fittings for him to hide... Do I need a light? How do I dose and how often? Any help is appreciated...