QUOTE (skunkfoo @ Oct 6 2009, 04:07 PM)

Stan do you suggest canna coco nutrients?
I suggest using coco-specific nutes
if you're using only coco...
It's not just me - the issue has come-up a few times. It seems that it can work if you mix the coco with suitable compost. Biobizz themselves seem to think you can use it, but it seems like a lot of supplements are necessary. (
click here)
Basically - hydro/coco nutes contain everything a plant needs in a form that the plant can immediately absorbe. It seems that organic nutes such as biobizz contain materials which may only become available after they've been acted-upon by soil microorganisms (not present in coco), or material which nourishes these beneficial microorganisms... hope that makes sense - basically hydro nutes meet the needs of the plant, compost nutes meet the needs of the whole beneficial community in the compost, including the plant.
There are some folk who experiment with adding microrganisms to hydro systems etc. so it's not so clear-cut as I describe above - but that's the general gist of things...
I keep my mums in coco, and tried using biobizz 'grow' for a while and my plants started to look a little like yours after a while... they did recover once I started using my regular hydro nutes.
Hopefully someone else will chip-in...
ATB
Stan