Well, it won't hurt to extend the meds a few more days. Just in case. Myself, hate meds in my tanks. But, if you feel you should then listen to the voice on your head this time around. Lol! I hate ich and I tackle it a lot, because I save fish I like at pet stores around me. Just tackled it last week from getting 2 new betta's. Had it gone within 3 days at first site. heat went to 88° for 2-3 days and water changes with vac. I also pulled the one betta that had about 5,6 spots and floated her in the same tank. She was spotless after 3rd day. day 5 she went back in the tank. Everyone is good. I even qt these fish for a wk before and still got it in my 55g. So qt will be 3wks from now on for me. Crazy...