Interveinal Chlorosis

@Chudd, the temperature is around 25 degrees and humidity is around 50% most of the time.

I’ve just noticed that you’re running temps and humidity are at 28-29 degrees and 45%.. your vpd is brutally out.. if your temps are so high you need a higher humidity to correspond.. google vapor pressure deficit and have a read.. if you can buy some kind of dimming device I would recommend it cus it’s gonna help scrub some heat and bring your grow into check 👍🏽👍🏽

@Chudd, the plants are showing no signs of heat or light stress, I think they are happy with the light.

Raise it as high as you can

@Chudd I can raise or lower the light but I can't dim it. I have very limited options as I am poor.

Hi man, I just have one simple question for you. Are you blasting them with all 600 watts that your light has to offer? cus these things are babies and they won't like that.. a 600W lamp within a metre on full power is gonna cause light burn/bleaching/really slow growth.. I really hope this helps man, happy growing!

Granny is right.

Hi @Psilocubensis, it's not soil it's coco and perlite, I think the plants are happy with the moisture level (except 'maybe' BBA), overall I am comfortable with that. Hi @ Chow_13, I am not sure it's actually possible to over nute using organics - you're not feeding the plant directly you're feeding the microbes in the medium (which I added to the coco). Hi @GrowingGrannie you're a legend, this refers to both KKA and BBA, but it is more obvious and prevalent on the KKA. As you noted in the first part of your reply, it seems to be affecting them all. I really strongly suspect it's an iron deficiency it's almost textbook the colouration. The only thing that makes me question myself is, why does it go to a normal green as it grows in? Where is it getting that iron from if it doesn't have it now? Perhaps it is getting enough to eventually develop the chlorophyll as the leaf ages. Either way I have already ordered some a replacement seaweed extract that is fortified with iron. It should arrive in a day or two and hopefully solve the issue. Regarding the second part of your reply, I do think that the photos look more dry than they really are - in what is happening is, the fan is drying out a small layer of fine particulates, which are then blown and accumulate at the egde of the pot making it look much dryer than it is - broadly speaking I keep them moist enough that just about any addition of liqued causes runoff. However, It is not truly hydroponic what I am doing, because for it to be true hydro I would be supplying the plants nutrients directly. I am attempting to do just that with the immobile micronutrients using seaweed extract, but the rest is organic and only feeds the microbes. So I have come to realise that I wont see any benefit of high frequency fertigation from these grows, because the actual nutrients the plants imbibe are being generated by the microbiota. I have added generous inoculations of around 8-13 species of trichoderma, bacteria, and mycorrhizal fungi. I do not see why I cannot cultivate a hospitable environment for microbes simply because it started sterile. I mean it is war and moist, and full of nutrients and food - microbes would thrive on just about any medium that fulfilled those criteria - soil, a paper towel, an actual towel, a sponge, even an old sock. However, if I am unable to successfully cultivate and maintain good microbitic health in the medium, my fallback is to use Acti-Vera - which contains enzymes that break down the other feeds into useable nutrition for the plants. Regarding the PH, I wonder if it makes any difference my growing technique? I mean if it were proper hydro it'd definitely need to be lower, but with soil you can have PH much higher, and since I am using organic methods to feeds it seems to me this grow should behave more like soil than hydro. I am nervous of dropping the PH too low. Nevertheless I will take it down to 6 and see how it goes. Thank you kindly for your thoughtful input.

Soil seems to be dump. Let it dryer, and just water when needed.

How much of each? plant is fairly small so you might be over doing the nutrients.