I took a chance and peeled the bulk of the rockwool away from the root section. On one of the plants i do believe i damaged some of the roots, but for the others i was extra careful.
Now that the "over watered" symptoms have cleared since removing majority of the rockwool, i now seem to be facing the opposite issue – under watering , but im unsure if its due to the shock of removing excess rockwool and having the plants planted directly into clay pebbles and canna coco. I see there has been lots of root growth since removing the rockwool, but in terms of my plants health, they arent looking to good... but hey, what did i expect? i disturbed the roots, so i was aware that plant death was a risk, but i wanted more control over the nutrients and feeding, and as im using LED lights, CFL and sunlight, because of the heat being minimal it wasnt evaporating much water from the rockwool cubes, plus the area where the rockwool joined with the canna coco and clay pebbles was getting slimy, and i was unable to flush them, so im kind of glad i removed the rockwool, but now im facing other probs. Since transplanting I assumed I was facing nutrient burn as the tips turned brown towards the lower plant, so I have been watering with just water for one day. Last night I fed them nutrients
switched from LED to CFL again last night, I see new growth has taken place, but still the illness is fairly clear.
Iv tried diagnosing each plant according to articles but iv become confused as each plant has a different symptom.... is it possible each plant is suffering from a different deficiency or problem?
Ill start with my New York City diesel -
I initially spotted the yellowing and curling of the embryo leaves, with slight yellowing of the lower canopy tips. Now I see theres dark spots forming on the leaf tips only.
theres only very slight yellowing, but most notable is the disappearance of serrated edges of leaves. They also appear to be slightly dry, and warping in directions.
doesnt have the dark spots, doesnt have the warped leaf growth but has yellow, and curled under lower leaves with ash grey/brown dead tips - also appears as though leaves are dry
Has peeling stem, at 1st i couldnt see under the peeling, but now its come lose a little and i see the stem appears to be green under the peeling, but the embryo leaves are partly dead, and the larger leaves have a "droop" which appear similar to overwatered plants. Plus the leaves are "cupping" - im not sure what its called, but the leaf edges are turning up. Also new teeny tiny growth is extra dark green and is distorted.
I see slight purple of the stem but as the name is purple power im not to worried at this point, however, im unsure if its viewable in the photo but the top leaves appear to have tiny brown spots randomly on the leaf.
So it appears i have quiet a wide range of issues
i posted pics of each plant but exceeded the number of photos allowed.
so far iv learn (but may not be correct, so any input is appreciated)
** nutrient burn affects the tips only, slowly working its way up with a yellowing colour
** brown tiny spots all over the leaf = calcium deficiency
** Slightly Larger brown like patches or spots = magnese deficiency
** Darker twisted new leaf growth = copper deficiency
** Purplish patches = Phosphorus deficiency
** Leaves curling up in cupping = heat stress
** yellowing = iron deficiencies
** Drooping = Overwatering or Underwatering
** yellowing between leaf vein – magnesium, or magnese defficient
** lower leaves turning yellow and dropping off = nutrient burn or nitrogen deficiencies
** leaf tips turning downwards = Nitrogen toxity
nothing mentioned for leaves losing serrated edges?
Im unsure how my plants would have any heat stress as they are never put in overly warm conditions. The warmest they have been in is outside in sunlight, which is warmer than the grow tent, so the leaves curling upwards also has me stumped.
im guessing ill start with some Cal mag?
in regards to Boron, is that available on its own?