Cloning issues: I have always had issues with clones, some have lived, some have died. My setup consists of: A fairly large wardrobe, 400watt HPS bulb (which i am currently running) and i have a spare 400watt MH bulb, a 150mm extractor fan which extracts from the top of the wardrobe and a air con unit which pumps air into the base of the wardrobe. I generally run the temp between 26 - 29 degrees celcius. My plants are a soil base, which has a percentage of pumice and worm castings blended in. i have grown several crops which have been exceedingly good however, always struggled with the rooting stage. So pretty much where my issues lie.. I have tryed taking cuttings from both flowering and non-flowering plants and the process i generally follow is - Taking a diagonal cutting when the light is running, dipping it in clonex gel and placing it in a rockwool medium. I generally dip the rockwool in either water or a small nute blend and then place the cutting immedietly under the 400watt MH/HPS pending which cycle i am on. So... My clones generally look fine when they are initally placed under the light and then by the following day they look quite withered... Some live, some die. Can anyone point me in any directions where i might be going wrong?