week 5 advice - feeding

I got 3 blueberry and 3 edelweis in a tent and was wonderin if anyone could advise me on feeding.
I'm using big pots with cocoa
So far I'm ph'ing my water (6.3)every other spray (approx every 2-3 days, or if they look really dry or the pots are light)
And when I feed I am using green dreams red, bud storm and Dr Hornbys big bud.
Is this enough/too much - should I be using anything else?
Look forward to hearin from you, I've already posted on here once before as I'm a novice and I've had some real safe advice from you people
cheers
:jointsmile:

p.s. I also just got an ec pen but am struggling with it - what readings should I be gettin, cos I'm following the guidelines on water to feed ratios but not sure if the ec pen is even neccesary