Leaves consistently burned

What am I doing wrong? I’ve lifted the light to the very tippy top of the tent and sweet little Matilda is still getting burns. I’m running it about 18 hours and turning it off during the hottest part of the days here. The burns start with little spots and then cover the leaf.

  • White Widow Autoflower
  • Coco Coir Mixed with Supersoil
  • Fabric grow pot
  • 6-7 pH
  • Indoor but sometimes I set her outside on sunny days
  • King UL600 LED
  • Temps: 80s
  • Humidity; always high because Houston
  • Ventilation system; Just a few fans
  • Small De-humidifier

Looks like a calmag deficiency. And that soil pH meter is not the most efficient to use. I highly recommend going digital. The Apera 20 is around $40-50 last I lookd and mine is 3 years old going strong.

Again looks to be Calcium deficiency. If you arent supplementing it I’d add some. But before hand Id double check your pH. Being out of range can throw lockouts and look like deficiencies.

How old is she and have u added any supplements?

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I planted her on April 25. I haven’t given any supplements other than a little Boogie Brew mixed into her water. I can definitely add calcium. The pH seems to be in a 6-7 range. I’ll get a better meter, I just saw that one at Lowe’s and figured it couldn’t hurt.
I suppose I thought the super soil would have all the nutrients already preloaded, so I didn’t even think of a deficiency in that area. Thank you!

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Ooo they have that at Lowe’s? Save the shipping thanks for that tip

Edit, I see now you mean the not good one so nm

Which type of super soil? Homemade? Maybe u got the bag to show me?

Most should have decent amounts of calcium (via bone meals and the like) so it maybe pH related. Also April 25 is less then a month. She should still have nutes in the soil. So another vote for pH.

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Dont believe so. I went Amazon…

Welcome to the community! :+1:t2:
Purps got you covered. Def. agree. Cal deficiency.
Good luck! :+1:t2::v::sunglasses:

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Yeah I misunderstood

Yes, sorry about that. I got the not-so-great one at Lowe’s. I’ll stick it out in my raised vegetable bed; maybe it’ll be helpful out there. Here’s the super soil.

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Thanks Spy. Good to be back bro.

Looks like SOLID soil. Microbe herd and all… hmmm. So

  1. PH meter (good one)
  2. CalMag Supplement
  3. A cheap TDS pen. $7-8

The tds pen u can use to check ur runoff and see how many nutes are still in ur soil. It wont get specifics. But a good ppm readoff I find super helpful at times.

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Mighty fine to see you. :+1:t2::v::sunglasses:

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Another thing I’m doing that might be dumb (idk?) is putting lemon juice into my water to fix pH. Is that bad?
I bought pH up and down, but then I was like “lemon juice is natural and acidic!” So, yeah, that was probably dumb eh?

Hmmm that maybe an issue. Not sure which way it pushes pH. I use baking soda (sparingly) as a natural pH up.

Lemon juice also doesnt hold as long. Ull find drift in the pH alot faster then the alternatives.

Normally when mixing nutes, mine pull the pH down, so I only ever need up (baking soda) or when Im boosting my Microbe Herd (Recharge and Tribus) i dont use anything added. They tend to handle the pH problems for me. But thats for u to research before diving into.

Let me look at lemon juice real quick

Yup! Thats the issue! Lemon juice drops it. And the tea was probably in range or a tad bit low anyway. Lol just dont use it next go round

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Welcome @bunnyblue! Saying Hi from south Houston. Purps got you covered!

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Hi Bobby! We just moved here from Alabama exactly a year ago. It’s definitely been an adjustment. :smiling_face_with_three_hearts:

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Ok, so I’m trying to keep it around 7 pH, right? Maybe mine’s too low. Imma start over with my water. I’ve ordered all the items y’all suggested, so I’ll know more tomorrow. Also, I have pH strips, but they’re sort of more based on how I interpret the color, which is always going to be a little wonky. And I can’t figure out how to get a reading down in the dirt that way, either.

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Indeed… strips and soil meters leave too much to interpretation for my liking. With that digital meter u can check ur solution before pouring and then u can catch and check runoff after.

Your growing pretty organically. So pH it less important then most. But still can throw u for a loop as ur seeing now with the lemon juice fiasco lol.

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Another alternative to lemon juice is citric acid crystals. Kroger has them in the canning aisle. It just takes a small pinch for me to bring my water down from 7.4 to 6.5

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Indeed… strips and soil meters leave too much to interpretation for my liking. With that digital meter u can check ur solution before pouring and then u can catch and check runoff after.

Your growing pretty organically. So pH it less important then most. But still can throw u for a loop as ur seeing now with the lemon juice fiasco lol.

U do mean just watering right? Not the whole plant. She’s savable.

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