So im noticing something

[DA_BURNIN_BUSH71804]

Peace every1, i noticed something with my leaves, can any1 give me some advice on how to fix? Much appreciated in advance.

[Dexterado]

I’m not 100% positive, but I’d start by checking ph. If that’s not the issue, then I’d hit it with some calmag.

[John7]

I see a couple tips that look like nutrient burn.

[OGIncognito]

@Dexterado

but I’d start by checking ph

this

[DA_BURNIN_BUSH71804]

I use coco loco and i ph @5.8

[DA_BURNIN_BUSH71804]

Thats what i was thinking, i haven’t hit it with a full dose of anything tbh ,afraid it may be toooooo much on’em. So yea , u think i should go a lil stronger next feed? Or jus with the calmag n keep everything else dialed back? Each1 teach1

[LateNightGardner]

@DA_BURNIN_BUSH71804

coco loco and i ph @5.8

Did you charge your Coco Loco before planting?? Coco Loco is considered Hydroponic so your pH is on the low end of where you want it to be. I try and add my water and nutrients on the high side, 6.2, of the window due to drift. I’ve noticed my medium tends to drop.
Calcium (Ca) and Magnesium (Mg) are both essential elements needed for your cannabis plant’s growth and flower development. They are seen as the most important non-primary cannabis nutrients and are the most common to cause a deficiency when growing weed hydroponically. Let’s break it down:

1. Understanding Signs of Nutrient Deficiency/Toxicity:

   • Signs of nutrient deficiency/toxicity will always be first shown on the cannabis leaves. Most of the time, the leaves depict issues happening within the root zone or with the plant internally.
   • Mobile elements (N, P, Mg, K) can easily move from older leaves to younger parts of the plant. When deficient, they show physical signs on the lower portion of the plant (older leaves) first.
   • Immobile elements (Fe, Cu, Z, B, Ca, Mn) lack the ability to be translocated once absorbed into the cell. Their deficiency symptoms typically manifest at the top parts or growing tips (newer growth) of the plant.

2. Calcium Functions:

   • Calcium serves vital functions in cannabis plants:
     • Essential for growth (meiosis: plant cell division).
     • Facilitates nutrient uptake.
     • Regulates stomata opening and transpiration.
     • Ensures proper flow of sugars and proteins.
     • Helps regulate enzymes and hormonal activity.
     • Aids in stress resistance.

3. Cannabis Calcium Deficiency:

   • Not common in soil or outdoor-grown plants.
   • Most common among indoor/hydro growers.
   • Symptoms include distorted or curled leaves, brown or black spots on leaves.
   • Critical during high-energy phases (transplanting, flowering).

4. Magnesium Functions:

   • Essential for plant growth.
   • Helps plants use other nutrients (e.g., nitrogen, phosphorus).

5. Signs of Magnesium Deficiency:

   • Growing shoots are spindly, narrower, or weaker than normal.
   • Yellowing of new growth may also be present.
   • Slower root growth and smaller root mass.

6. Why Coco Coir Needs Cal-Mag:

   • Coco coir has cation exchange sites that lock onto Ca and Mg, rendering them unavailable to the plant.
   • Buffering coco coir with calmag prior to use is critical.
   • Even pre-buffered coco requires additional Cal Mag supplement during the grow.

In summary, yes, your Coco Loco medium would benefit from a cal-mag application when your leaves show signs of deficiency. Providing adequate calcium and magnesium ensures healthy cannabis growth and prevents deficiencies. Remember to monitor your plants closely and adjust nutrient levels as needed! .

[DA_BURNIN_BUSH71804]

Thank u much for the clarification

[Gl1tch]

I have also had good luck with foliar spray as a right now solution for cal mag deficiency

[OGIncognito]

Bump that PH up to 6.3-6.5. This PH works best when I’m using Coco Loco

[Gl1tch]

I should also point out foliar isn’t a fix, just a stopgap until you fix the underlying cause. I believe OG has the fix. I let my ph slowly drift between 5.8 and 6.4 and it has served me well

[Dexterado]

If your ph is off, it likely won’t uptake nutrients correctly anyway, so I’d check ph, and go from there.

[Gl1tch]

So am I misunderstanding the foliar feed concept? I thought that as long as the stomata where open and your foliar spray is correctly calibrated, the plant would take it up directly reguardless of root zone condition.

[LateNightGardner]

@Gl1tch

foliar feed concept

I use foliar spray as a spot application to correct a condition. I try not to use any foliar spray, aside from germination and/or cloning. After roots are established and your plant is healthy I do not want to introduce additional moisture. With hydroponics the plants produce plenty of humidity on their own.
But when plants are sick or an insect/microbe attack I’ll whup out some foliage spray. Bonide Captain Jack’s Neem Max.

Amazon.com: Bonide Captain Jack's Neem Max, 16 oz Concentrated Cold Pressed Neem...

Always apply foliage spray at sunup so plants have time to absorb it. Don’t forget to get plenty of air to the plants and make sure you’re pulling air into and out of your grow area. Fresh air contains the CO2 needed for growth and provides the means to dry out the excess moisture on your plants.