to provide context i’ll begin with copy pasting how things were like before i took action (putting matchheads in the soil as i didn’t have a quick way to get my hands on some sulphur that night)
"3 new plants have been seeded (they’ve been planted with biobizz light mix as a substrate) and have gotten into their early/mid flowering phase, ended up picking fastbuds’ z auto as it has more information available about it, currently the oldest of the three is presenting different symptoms at the same time, I’ll follow the list before getting more in-depth about what is going on with the plant.
strain and seed bank: z auto from fastbuds
age of plant: 40 days old, started flowering at the end of week 3
method: biobizz light mix, 3 gal pot, used fish mix for veg and currently using bio grow 2ml/l, bio bloom 2ml/l and top max1ml/l following the feeding schedule on biobizz website, due to leaf discoloration did 1ml/l foliar with fish mix and it slightly helped to regain colour, next day we got back at standard decoloration, currently waiting one more day before watering.
ph: 6/6.5 using 2 calibrated ph pens, going bio atm so no tds readings
indoor or outdoor: indoor, 80x80cm base and 190cm in height
light system: 2 el cheapo led boards, currently giving them 40dli
actual wattage draw of lights: 120 currently, 160 at peak
light schedule: 20/4
temps: 23c
humidity: noticed that it got to 70% for a couple of weeks, currently 50/55%
ventilation system: fan hanging from above, 6" inline fan and ceramic heating system inside the tent (lung room heating is not possible
co2: air levels
current issues:
stunted growth (unless I’ve been spoiled by the growth put on during the flowering stretch)
lighting of shade of the top leaves, now it’s moving down, some leaves on the parts hit by the light grow some burn spots
marbling effect on the leaves, close to tobacco mosaic virus but not quite that
some leaves are warped
rust spots?
stems of leaves taking on a purplish colour just on the tops
current theories:
septoria on some leaves?
potential light burn? lowered the dli to 35 to see if the leaves get a bit greener
cal mag problems?
pics of that day:
"
that day i ended up thinking about it a bit more and ended up with 5 possible conclusions:
molybdenum-
sulphur-
calmag-
iron-
nitrogen-
given what i had at the time i chose to start ruling out what i could, thus nitrogen by putting some fish mix in the feeding water and sulphur by putting matchheads in the soil
and who would’ve thought that THAT wasn’t a good idea.
results of that:
suffice to say first thing that I’ve done after seeing this was a complete flush and ended it with a watering at 1/3rd strength of the recommended values from the grow chart, (still using fabric pots so overwatering shouldn’t be a worry) ordered some alg-a-mic to do foliar and cal-mag to add next watering (if there will be one)
whereas i can understand a part of as to why the leaves look like that (thin and wilted) due to the nitrogen toxicity no matter how much i look around i cannot understand what is going on with the rest, the curling? no fan is pointed towards them nor is there strong airflow, the lights haven’t been touched at all and are still set to provide 35DLI, the veins looking either dry or sketched by a non medicated guy with parkinson trying to draw a straight line, the changes in tonality? all of the rust spot/dots now presenting themselves like crazy?
I’m completely out of my water and i can’t seem to make up for it just with article readings, to who knows more than i do, what are your considerations/theories as to what is going on with these plants?
out of the soil to reset the soil. This would help to get rid of all the excessive sulfur as well.