Its clear that the 1000w is causing this, it started happening when you put them under the 1000w light in flower. Stressed and havnt recovered.
Put them back under the 400w at 12/12 before they die. If you lose too many leaves you wont get much weight at harvest. Going from 400w to 1000w is a...
Rais ethe light, 12inches is too close, light bleaching damage is a major issue with your final weight as you lose leaves from the top. I doubt they are still stretching at week 7.
Too wet and this has killed the cuttings. Try to have it so the jiffys need watering every day after about day 3.
No domes or containers around the jiffys. sterile tools,heat mats and make sure angle cut is covered tightly in the jiffy no gaps.
Firstly i cant beleive you took your wife to Amsterdam for a pot smoking honeymoon.
You dont need to worry about ph'ing the water as the the sprout isnt consuming nutes just water. If your going into soil just start them straight in jiffy pots not RW cubes or papertowels and wait up to 2 weeks...
No need for scrubbing mate just get spray bottle and mask, start at the very front of the room and work your way out the door spraying walls ,cracks ,carpets etc.
The chemical i used(dicofol) has wiped them out no sign at all and no harm to plants. This stuff is similar to DDT...
The 600w is far too much for the seedlings at this very early stage, keep it raised high. The leaning is nothing. New seedlings have weak stems and find it hard to hold themselves up, this will pass. A light fan can help strengthen the stems.
Heat is a big deal and you cant compare indoor to out.
You need to get and indica (not some tall spindly sativa) and train it in veg. Im about to harvest a G13 that looks about 14-16 oz and 2 others about 12 oz. I have cooltube over the lights 600w. To maximize the bud sites i train the plant...
The lower leaf yellowing is nothing to worry about, the upper leaf yellowing is light bleaching and you need to fix it by raising the lights , will become a major issue if left as is.
Add some soil to cover the roots, dont use mulch wood chips etc indoor, it makes the soil acid and can make the pot hold water too long. Next time transplant deeper.
They are dead. You need to have the mother plant healthy green and vigorous. The cubes are too big for cloning as its disireable to have clones needing a water every 24 hrs or so, those cubes wont dry in a month of sundays. Use perlite nex time and make sure your tools are sterilized and the...