From what I can tell from the pics.... it looks textbook nitrogen deficiency. Nitrogen deficient plants will "cannibalize" nitrogen from the bottom leaves, to feed the upper leaves. Its not a terribly bad thing, so long as its addressed in a timely fashion.
Some folks wait to see this before they feed.
Definitely needs some nutrient solution, with a decent N number. Just dont go nuclear. Follow the directions, presumably 1 tsp per gallon or half that to be safe. You can also Foliar feed by putting about a DROP of nute juice into a sprayer full of pure water. If you read the label, it should tell you how much nitrogen is Ammonia and how much is Urea {piss}, Ammonia nitrogen is the stuff that will effect your plants right away. Urea takes some time, and the right bacteria in your soil to make it available to plants later on.
Nitrogen is everywhere, you are breathing some right now... its just that nitrogen in the air isn't typically available to plants {unless that plant is a legume} . It is my understanding,
I could be rong ... that MISTING plants {or getting rained on proper outdoors} makes some of the nitrogen in the air available to the plant.
The Superthrive has its place. Wormshit, vitamins and Humic acid etc run through fine screen filter is brilliant stuff... its just not a nuclear grade source of Nitrogen.
Are those Cell Phone pictures??? And if so, is the cell phone GPS enabled??? If you answered yes to both questions... the GPS location where the pics were shot can be traced. Just so you know.
me and my buddy are growing a utopia haze it started off in hydro and we just put it in foxfarm seedling starter soil, it looked fine before now the leaves are turning yellow and curling upwards at the tips and the stems are turning all purple idk what to do purple stems and purple leaves are also a problem with our other clones idk what to do give me some suggestions
I would go to G-Mart (wal*mart) and pick up some super thrive