General Cure can be used as a medicated fish food soak by using 1/2 a packet for an average 60 gallon bio load medicated fish preparation. Fish food should be soaked for 15 minutes,After soak, pour entire contents into aquarium. (Additional medication can be added for a full tank treatment; for example with a 30 gallon aquarium, use 1/2 packet in the food soak and use the other half plus two more packets in the aquarium).