Hello, I moved my plants in for winter. I soaked them in the tub for 5 min and cleand the pots ect. Then let them drain for 24 hours. put them around the ketchen and 2 days later they are getting soft yellow leaves. I think I see some very tiny brown dot/lines on underside. I dead headed and pulled all old stuff off before I put them in. I pulled the yellow one's off last night. Is it a fungus?? Help They are big and soo pretty would hate to loose them. Thank you.