depends on how much you feed them and how big the tank is. ICH is a pain in the ass. usually what happens is you end up buying a fish from the pet store that has ich whether its showing it or not, and it fucks up your whole tank. %75 water changes need to be done every night, turn the temperature up to about 86*, add ich cure.
also, The only thing I have changed in my tank sense the last video I posted was I got rid of all my fake plants, and have all real plants.