Hi Anastrphy, I think its to do with the plants position in my cab, its been getting more light from the walls than the bulb, its been on the outer edge. Ive moved it dircetly under the bulb

Purple stems indicate a phosphorus deficency, but this plant is only a week old and is getting all the nutrients it needs from the first 2 nodes (cant remember what theyre called) think its purple just cos its young....i'll start to fert in about a weeks time

cheers for the input...i thought about it being over watering...but its had only been watered twice in its life and none of the other's looked the same...so...think its the light

Turtle.......if i fuck this grow up and end up with loads of seeds i'll send u some