Cookies Gelato, Royal G, Wedding Crasher

week 7 boys and girls, getting ready to finish, day 47 flower. As you can see we've got some purpleing going on ;). All buds are looking great! Cookies gelato got a root rot, most likely from clogged up pot that overfilled, didn't noticed it, until it was too late. Bought peroxide, but I won't use it, leaves are yellow, but other plants are fine and I dont want to mess them up, since its combined system. I'll harvest cookies gelato around day 56 probably, other I'll see. It's getting very cold, tent is in a shed. Feedback appriciated.