7 weeks 2 days. NEED HELP with next steps!!!

Hey everyone. I got 2 girls. A Critical Plus and a Blue Dreams. They are both on 7 weeks and 2 days today. The Critical Plus DEF has amber tricomes already. maybe 50%. and the Blue Dream prob gots 10-15% amber. Ive only been giving them straight water for 1 day now. The week prior i started using less and less nutes, but last night was the first night I started doing just plain water. What should I do cause the Critical looks done? How long should I flush them for? and do i just feed them plain water for a x number of days or do I do a actual flush and THEN just do water for x number of days? PLEASE HELP! I wanna do this correct.

They are in 3 gal pots with FFOF and FF Nutes. Under 425w and in a controlled environment in my room with a dehumidifier that keeps it in the 30% range. I will post pics later tonight. they are in dark cycle now and I have surgery later today so Ill try to tonight. Any info helps! Thanks everyone!!

mmm..those girls are ready to come down NOW...but for the best taste flush for a week at least..i do 14 days some do more or less but 7 will have to do for ya otherwise ur gana miss the peak...peak potiency has about a 1 week window... 50% amber is past in my opinion thatll make some real night time smoke but if u take the BD soon itll be more of an up up up and away high

when i flush i give only water then 5 days before harvest i do a tru flush...3gal pots will take about 4 gal of water to flush /w FFoF... on the bright side FF is organical so u dont have a whole whole lotta junk to flush out..after i do that i dont water any more at all