if usin coco yes mate and dont worry if i can help i always will dude
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Leaf tips discoloration
- Thread starter SouthsideTone
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Southside-- let me confirm, you have 30% vermiculite in the coco, or do you mean perlite? Vermiculite will be problematic in coco, totally unnecessary,.. have you done some research about coco growing? there are many do's and don't's with it, because of it's unusual properties as a growing medium,... it can't be treated like a true soil at all, it's a bit more like hydro' in some ways,...So, you say the burning started before you fed the first time? What are you using, dosage and frequency? Did you happen to pre-fert' the coco beforehand? What brand of coco is it? Some brands are not very good, often poorly washed and not aged enough to leach out the excess Na and K,...
...to my eye, this isn't a nute burn thing, the newest growth isn't showing any signs, no tip burn, distortions, and with lowers wasting out like that, there almost certainly would be,...it looks like a defc., P if anything,... get me the info and we'll dial it in more!
So, you say the burning started before you fed the first time? What are you using, dosage and frequency? Did you happen to pre-fert' the coco beforehand? What brand of coco is it? Some brands are not very good, often poorly washed and not aged enough to leach out the excess Na and K,...
...to my eye, this isn't a nute burn thing, the newest growth isn't showing any signs, no tip burn, distortions, and with lowers wasting out like that, there almost certainly would be,...it looks like a defc., P if anything,... get me the info and we'll dial it in more!
Yea bro it started b4 I even feed nutes.
I'm using cocotek coco
Lol yea bro I meant perlite
But on a serious note I need sum advice I don't wanna have 2 start from da drawing board
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I too would say that this is not nute burn, the light green color indicates lack of, not excess. The only symptom that is pretty clear is P def with the mottled purplish colors. What are your temps and humidity? Low temps can effect P uptake but this is really pretty rare. Also, no mention of pH monitoring/adjustment, have you been adjusting feeds and to what pH? What about plain water? Never use plain water in coco, mix up some CaMg with it. We really need some more info to try to help you get things worked out.
I recently bought a ro system so I been using ro water since week 1. I was using tap for the first week
My temps & humidity been around 77-69 degrees & 55-49 % humidity
I've been feeding with the ph of 6.3
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RO water is good, but you never give coco straight water alone. Mix some CaMg in with the RO until you have a ppm of around, don't quote me on this, 150-200. @Waira can you confirm this concentration for watering coco please? I am not a coco guy, but I've seen alot of coco issues come through here and picked up alot. I am also pretty sure you are running your pH too high for coco. 6.3 would be perfect for peat, but with coco you need to drop down more into the 5.7 - 5.8 range. Also, how far away is your LED? You should be up around 24 inches away, having it too close can cause weird physiological shit to happen and you can get wildly various symptoms.
My lights currently is 18 inches from my plant
Thx bro I really appreciate the feedback, I'm definitely taking notes 4 I can right my wrongs
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18 is not so close to cause light stress problems, but FYI I run a single 300 watt LED above each plant and I start my seedlings at 30 inches and let them grow up to within 24 inches, then leave it at 24 until the stretch is over, then I lower to 18 until harvest. I sometimes had trouble getting my girls to stretch good when I ran my lights closer.
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