thanks weedhound...i bumped the nute numbers up just a tad from 1.3 to 1.5, so i'll give it 24 hours and see what happens...but yeah, the plants are hungry!

to be honest, i actually don't change the water that often...a mixture of laziness and a perhaps pollyana-ish faith in the EC meter letting me know all is well....and sorry for my ignorance (this is my fourth grow, so i'm still learning!), but by 'flushing' do you mean replacing solution with pure ph-adjust water?

and re: root health...i just use the nutes to tell you the truth. if i were to use h2o2, how much would you suggest putting in to a 20 liter reservoir?

...and almost forgot - do you think i can go ahead and bend the top of that frazzled looking skunk to even out the canopy?

all best and thanks as ever!
--jash