Immun Stabil Fish 50ml Pure herbal extract additive for all Koi, freshwater and saltwater fish. Improvement of coloration and vitality of all fish. At the first signs of any illness, mix Immun Stabil Fish into the appropriate feed.Dosing Normal: 2 drops daily per 1g of fish food. As an immune system stimulant: Use 1-2 times per week to increase...