Please help. The pics are my 6wk old superskunk.

deep water culture bubblers. 600w hps. general hydroponics flora series nutes.

Cloning was fine. formulex and rhizotonic in rockwool cubes under fluro.

About a wk after transplanting to the bubblers, yellowing of the larger fan leaves started.

guy in hydro shop suspected heat stress, so i substituted my open reflector for a cool shade.

Still the yellowing continued. Suspecting the nute solution, I changed it for fresh. Used the recomended dilution ratio, and ph'd the solution to 6.

Also added a little superthrive to the mix.

I like to crop all the side shoots when i flower so as to finish with 1 large bud. This has worked fine for me previous, with coco medium and nutes..but this time, i noticed the new shoots were comming out twisted and deformed, and the budsites are much smaller and spindly than i would expect.

They are now 2 wks into flower on a 12/12. And as you can see, they look half dead.

My temps are fine, good air circulation, only thing i dont know about is nute solution temp.

Too add..my mate has EXACTLY the same setup, same clones from same mother, same nutes same everything, and he has grown some monster buds.
As did I last crop.

The thing i cannot understand is that i have changed nothing. I have used this system for 12 months..all fine..now i am spontaneously getting probs.

Im stumped.

wat do u all think ?
volak Reviewed by volak on . yellowing leaves/stunted growth Please help. The pics are my 6wk old superskunk. deep water culture bubblers. 600w hps. general hydroponics flora series nutes. Cloning was fine. formulex and rhizotonic in rockwool cubes under fluro. About a wk after transplanting to the bubblers, yellowing of the larger fan leaves started. guy in hydro shop suspected heat stress, so i substituted my open reflector for a cool shade. Rating: 5