no if you have ick you are going to have to put your fish in a q tank and do hypo to it it treat with medication. If you have one fish with ick you are going to have all fish with ick
using garlic in the food isnt a cure but good to help prevent it. it works the same as garlic tablets for dogs and cats, where the bugs dont like the tast when they bite. also i think it gives the fish immune system a boost also