Aqua One FBroad Spectrum Remedy 150ml Aqua One Broad Spectrum Remedy 150ml Aqua One Broad Spectrum Remedy is anaid in the treatment of bacterial, fungal and parasitic diseases in freshwateraquarium fish. Use when signs of disease are present, fish look listless or newfish are added to the aquarium A 25% water change is recommended before commencing treatment. Remove activated carbon from filtration system for duration of the treatment. Activated carbon will remove this product from aquarium water resulting in ineffective treatment. This product should not be used on fish which is prepared for human consumption.