I just got home from work and notice that 2 of my fish has white spots on its tail that wasn't there yesterday or this morning. Im guessing that it's ICH. All the petstore are closed right now so I cannot get any medician. What would be the best thing to do until tomorow afternoon when I am able to go the petstore to get some medician? And also which brand of medician would you recommend and how it should be applied to the water. Thanks in advance for the help!