I’m not really sure where to begin, so I’ll give a little background.
Out of my three of five seeda that sprouted, the one in question was first to actually become a real plant. Sine the fisrt sprout, one that was lagging became huge by comparison, and the third to germinate caught up to the first.
All three plants are in early veg, e.g. 4 or 5 nodes of real leaves.
Grow medium is Black Gold, Just Coir.
All three began life in Jiffy pellets. The plant in question is actually the one that started expanding roots outside of the Jiffy Pot transition into coco.
They are all under a Platimun LED P600, set to veg only, so roughly less than 200 actual wats from the wall. Based upon a conversation with Platimun tech, they are set at ~30 inches at the moment.
The other two plants have deep green leaves and good growth patterns. They appear to be doing ll, in my opinion. They third, initially, had new growth that appeared to be coming in yellow. In my research, new growth that comes in yellow could be an iron deficiency, as nitrogen would be the opposite. I was also concerned that the transition to LED may have stressed this one plant. I did notice that this one plant seems to absorb water at a faster rate than the other two.
What I did, with all three plants was to introduce the full nute setup. That consists of Botanicare Pure Blend Pro, CalMag+, and Liquid Karma. I also added in soime Great White for microbial action and root health. I also added the T5 back into the lighting, focused on the plant with the yellowing new growth.
The pH of the water / nutes is at 6.1. I had to use pH Up to bring it up from 4.9. Water is distilled, and rates at ~7.0.
Using this blend, all plants have done well, and the yellowing on the one plant dissapeared and the leaves in the new growth phased from yellow to green. I have not watered / nuted since last night.
My observations tonight is that all plants continue to look very well; with growth happening at the junction of eact leaf pairing and the main stem.
WHat I’ve observed, is while the yellowed new growth on the one platis nota nice shade of green, one of th leaves from the second node is sporting what appears to be some light brown spots on the one center leaf. it is isolated to the one leaf.
With all plants receiving the same treatment, i am at a loss about the brown spots, atm. I can’t check with my local hydro guru until Monday, and wanted to address the issue as soon as possible.
Other than the small brown spots, everything else looks very nice across the board with all three plants. Any advice / insight is appreciated.