Indoor Mars Hydro grow journal: WildBill does Hubbabubbasmelloscope in EarthBoxes under MarsHydro SP3000

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I've posted the problem in the infirmary section.

Problem: HBSS in EarthBoxes progressive lightening of newer leaves. Old fan leaves not affected.

Medium/grow method: Roots Organic Original

Feed: and supplements used: Top dressed each with
Ground up 4 table spoons of Thorvin Kelp
Ground up 1/2 cup of Alfalfa meal
One cup of DuMore Chicken crumble
1/2 cup of bokoshi


water source: Rain water 7.0PH

Strain/age:HBSS

light used: SP3000 and Cali Lightworks165watts full grow

Climate: Last 4 days 80*F 60%rH

Additional info: Exact same media in 7 gal pots with no problems with two other strains. BOTH HBSS are showing exact same signs.
Added recommended amount of dolomite lime at the time of filling the container
I started to notice a very slight lightening of the new and new growth Wednesday or Thursday. It has progressed. Old growth is not problematic.
I've checked the overflow water every time I watered with very minimal changes in pH.

Two possible problem areas:
I think the cause.
1. I've had to pull up the lights 5-6 times in the last 3 days. Now that was after finding out I had the SP3000 fully dimmed and I think it was like that for 2 or 3 cycles.
All the girls jumped up, but most so with the HBSS. The past two days,when I woke up, the girls shot up and got up to 23in and 22in each day. That's probably over 900ppfd. Girls in the 7gal pots are not as tall.

2. Other than a couple days after applying the bokoshi, I have no kind of mat development, even after this week's application. I think the compost mites have eaten it as it forms.

Other than those things, I have nothing. I've pulled up the lights to 26in for the time being

With the canopy getting that close, after finding about the dimming and fully bringing the lights back up, could it caused a shock to the roots and caused them to have a problem delivering nutrients?

Or is this a simple bleaching/light stress?

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View attachment 1284463
How close is your led above the plants? Kinda looks like light burn like you suggested possibly.
 
Checked cal on pen and it’s still spot on.
Checked the rainwater and it's still 7.0
Suctioned rez and it was 6.6.
Moisture/ph probe showed 6.6 mid-media and 6.5 at the bottom.

I was kinda hoping to see something. At least it would be an answer
Current tent
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Checked cal on pen and it’s still spot on.
Checked the rainwater and it's still 7.0
Suctioned rez and it was 6.6.
Moisture/ph probe showed 6.6 mid-media and 6.5 at the bottom.

I was kinda hoping to see something. At least it would be an answer
Current tent
View attachment 1284694
I'm pulling for you as if they were my own. I just wish I had experience to contribute. On the other hand, every team needs a cheerleader.

Here we go WILD BILL, Here we go! (Clap, Clap)
 
I'm not sure. Looks like it cud be light burn but that distance seems right for leds. I'm not sure about organics so I cant help you there. Maybe back the light off and see if it helps?
 
I can't really see any progress of the lightening. I do see spots that were slight discoloration but have turned a little. Maybe some help, but it's only on one big older fan on each girl.
Other girls need their watering.
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Spots
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Hey @WildBill stopped by for a peek and am seeing a familiar sight. I also use the roots organics original and some SP's. In the User manual they allude to the need to add more calcium and magnesium on page 5. I have found this to be true. Where's your calcium and magnesium coming from ? Those SP's really put a plant in overdrive. They really do not look that bad so be careful don't over compensate. I have been using the roots elemental for the calcium and magnesium and it is a slow release.:pass:
 
Hey @WildBill stopped by for a peek and am seeing a familiar sight. I also use the roots organics original and some SP's. In the User manual they allude to the need to add more calcium and magnesium on page 5. I have found this to be true. Where's your calcium and magnesium coming from ? Those SP's really put a plant in overdrive. They really do not look that bad so be careful don't over compensate. I have been using the roots elemental for the calcium and magnesium and it is a slow release.:pass:
I was thinking low calcium myself.
 
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