Looks like you got some heat stress judging by those dead tops. And also looks thirsty or overwaterd. If those were mine they would be coming down next weekend.
Just so you are aware plants stink way more after they are cut down. If it were me I would be securing a room turning off all fans, making sure it was dark, adding ona gel to your room, and candles and air fresheners all over the house.
I dont agree with this post at all, ph is a massive factor and if you have no clue what it is it cant be eliminated as an issue, the first time i integrated phing my water and nutes into my garden the overall health of my plants and yield increased. Suite yourself if your going to be blind to ph.
I use FFOF with added dolomite lime. Watering schedule really depends on the times, temps, size of container etc. However it seems right now my 2.5 gallon pots get watered every 3-4 days. 5 gals are getting watered every 2-3 days, and the 10 gals are getting watered every 4-5 days.
This is way too broad of a question you need to give us more info. Pictures, soil, nutes, age, height, water schedule, type of lights, temperature, fresh air, kind of water, ph etc...
4/11/13, Day 15, Week 3
Took some pics of the veg/clone room today also to let you guys see whats brewing for next round, same strains. All I do for cloning is cut off a branch, slit the stem down the middle to expose the white goodness inside (dont remember the technical term), dip the stem in...
Main lining is when you cut the tops and let the side growth shoots pop out then you cut those also above the second node, you end up with 2,4,8 or 16 "mainlines"
Are you mainlining? also I wouldnt switch the light sources up, it can shock them a bit going from a soft light to the most intense light there is, the sun.