Hi All The stems on my plants are thinning out and the plants are falling over as a result and dying. I've researched this but have been unable to find a scrap of information about this particular condition. This has occurred just at mid-flowering. I've covered up the weak stem part with soil and helped support the plant with a stake The plants did not have an internal little fan going while growing. chamber is 1.2 m2, 1200W, (HPS & MH). Plants are about 3' high Coconut fibre soil “House & Garden†variety fertisiler humidity range 35-75% Watering is intermittent, about 15 litres twice a week temperatures are in the low 20's C, though drop to about 15 C after the lights go out On a 12/12 cycle Will take a pH reading soon Any help appreciated