Have been pretty slack of late, I think the problem has been resolved though... I think the compost I had them in must have been lacking in some nute or other due to its age, my attempts at feeding them probably resulted in N lock up or something along those lines...
Anyway, I decided to get em all out of their pots and get rid of as much of the shit compost off the roots as possible and have repotted them all in some Bio-Bizz allmix kindly donated to me by a friend to see if it worked.
Results have been astounding, in the past weeks they've all sprouted tons of healthy new growth and are looking happy again.
The big sativa clone had also become rootbound so have potted her up and she is now getting a bit big for the drobe... have started with a bit of LST type shenanigans, tying all of her branches back with fishing line! She seems to be responding well.
The 4 cheese plants are still small but coming on strong, 2 of them have stopped growing a main stem and have branched out sideways instead... giving the impression that they've been topped, but its due to deformations caused when they got trapped as seedlings... will be interesting to see how they go.
The other 2 cheese are growing in a more regular vertical fashion.
Anyway, lesson learned... don't gamble on shit compost!!
I've wasted about a month of with slow growth and other things being more important

Time to get my shit back on track
Pics to follow!