stealth grow 11

i bort the coco canna nutrients A&B how much nutrients should i add to a 2litre bottle of water ive got the ml measureing gage at the top just dont no how much ml to add to 2litres ?????

you can use the jiffy bags but for next time definitely rock wool

Can you help? I've just started my dwc system up my cuttings are in jiffy bags (soil) shall i go ahead and use those one or take more in rock wool??????
many thanks