Schwarz braune flecken
Yan420answered grow question 1y ago
Hey growmie, those spots could be from a CalMag deficiency or a pH issue – but honestly, it could also be that the spider mites aren't completely gone yet. You mentioned something about it a few weeks ago.
Have you done anything about it? Without neem, predatory mites, or soap solution, they often stick around and keep munching slowly. I’d check the undersides of the leaves again – if you still see anything crawling or webs, then the problem is probably still active.
If there are none left: keep the pH at 6.2–6.5, give 0.5–1ml/L of CalMag, and pay attention to the new growth. If that stays clean, you're on the right track.
It definitely looks like stress, but not dramatically so. You can get it under control again 🤞🍀♥️
Organomananswered grow question 1y ago
The spots are the signs of a calcium deficiency.
It is not pH related.
Either add some cal/mag to your fertilizer line up or increase the dosage if already using it.
Your plant also seems very hungry for potassium and phosphorous too.
A half dose of "grow" fertilizer to boost it with some nitrogen would not hurt either.
Whatever you do, do not put your plant in a bath tub and run 5-10 gallons of water through it!
likes
Complain
All_our_small_plantsanswered grow question 1y ago
Looks like a CalMag deficiency to me. Do you even give CalMag? I would generally always do that if you're growing indoors. And with the pH value, you're in a good range at 6.5, but ideally, you should start at 5.8 when they're small and slowly raise it to 6.5 during flowering. And you should start with PK slowly when they go into flowering because a PK deficiency looks similar, but I think it's not that, it's CalMag.
likes
Complain
TruTraTrianswered grow question 1y ago
The black-brown spots are likely caused by nutrient uptake issues—most often due to incorrect pH or poor soil buffering. Calcium and micronutrient deficiencies (like manganese) can create this pattern.
At week 2, make sure your pH is around 6.3–6.5 for soil, and that you’re not overwatering. If you're not feeding yet, consider starting with light nutrients + CalMag. New growth health will show if it's recovering.
likes
Complain
Ninjabudsanswered grow question 1y ago
Hey there don’t worry I have the solution
I would say for sure it’s a little bit of 2 things
1. The plant is lacking nitrogen durring the 1st 2 or 3 weeks of flower when the plant goes thru the strech it requires a lot of nutrients durring that time you need to increase the nutrients I would just stick with a flowering stage nutrient now that the strech is over it will probably always be a little light green now but it should get a little greener over time
2. The soil ph is to acidic causing some lockout witch exasperated the 1st problem if you water the plant and check the ph of the run off water you will see it’s down below ph5… all you need to do is take the plant to a bathtub and run 5 to 10 gallons of tap water thru the soil most tap water has a ph 7 to 8.5 this is fine it will bring the ph back up in the soil to a good range make sure to give plants a few cups of water with nutrients after the plain tap water make sure to ph the water with nutrients to 6.4
likes
Complain