there is a ick tablet you can buy at walmart, petsmare etc.follow the directions on the package and you should be ok to put more fish in after it's treated.I bought my fish at walmart .no more
As a general tonic and stress reducer for tropical fish you use 1 rounded tablespoon for every 5 gallons of aquarium water. As a general tonic and stress reducer for gold fish add 1/2 rounded teaspoon for every gallon of water.To enhance tropical fish disease treatment add 1 rounded tablespoon...