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Hopefully someone with experience on pressure aeroponics could chime in. I'm not really familiar with it. But as you calculated 4.7L of water per plant should be plenty enough. With 180s feed interval it shouldn't dry up too bad either. Roots still looking good?

1:1 ratio of the part A and B seems to have pretty good balance on the K-Cal-Mag. Around 4 : 1 : 0,3 ratio for K:Ca:Mg. With this I wouldn't add any extra Cal-Mag. Temps and PPFD's has been on the upper end, but should be manageble

It does look like some potassium deficiency.. How's your source water? And how much you've been using cal-mag? Too much cal-mag might reduce your potassium intake even if there is enough potassium in the feed.

I often just use the passive water with clones and get close to 100% rooting rate. When I had fails, it was almost always from too much light. These days I aim for like 50ppfd for 24/7

GHE or Terra Aquatica products consists often citric acid, atleast for the dry nutes and pH down. This usually swings the pH up after awhile, with these aim for the lower end.

Looks interesting. Wouldn't think the fire hazard would a problem. Just get a proper container for it.

The medium growed has also probably alot to do with it. If the medium is allowed to dry between waterings and the humidity is too low and the plant transpires more, then there might be too dry parts in the medium which would affect negatively on the nutrient/water uptake and thus growth. But in...

Canopy is starting to be pretty good, few more days wouldn't hurt to maximize the space. But if in a hurry that canopy should do fine.

Yes, but compare individual branches for bottom/top growth, then you see the progression better. The big leaf in the center is still lower leaf for that branch + it's getting alot of light. So definatly Mg deficiency like others pointed and it's been progressing for awhile. Magnesium moves well...

I'd say that's pretty useless. There has been lately some articles about sodium bicarbonate and its effects in athletes. "A study in ten male soccer players found that athletes who drank 51 ounces (1,500 ml) of hydrogen-enriched water experienced lower levels of blood lactate and decreased...

The cells in the plant need oxygen to use the carbohydrates for energy. The carbohydrates are made from CO2 during photosynthesis. If there is no oxygen in the rootzone, the cells suffer and become susceptible to diseases and damage.

Immobile nutrient deficiencies show up first in the new growth, because they can't be re-distributed within the plant. So like in this case, newest growth is mostly affected. And considering the yellowing is starting from the base of leaf instead of tips, this is usually a sign of Fe deficiency...

Yup, I'd more inclined to suspect Mag aswell. Iron would be visible in the new growth. Phosphorus would be unlikely in veg, also the lower leaf symptoms don't really match. But the Mag def will often first show itself by turning leaf petioles red, then you would start seeing symptoms between...

1ml/l of 5% nitrogen solution (micro) would make 50ppm solution. So you *10000 the 5% solution to make ppm's, then /1000 to adjust for 1ml 5% nitrogen solution per 1000ml(1liter) of water

Yeah, something along of too much nutes like others have suspected. Too much of Ca,Mg or K leads to deficiency in others. Lucas formula is around NPK 50/44/77 + CaMgS 43/36/33 No need for Ca+Mg with this. If anything some more K would do better, in a milder solution

Had some rubber and what not under my pump last season. Without any rubber under it made a ton more noise. Somewhat fine like that, but I reckon I'll try the hanging method next time. @amneziaHaze What have you used to hang the pump? Chain, ropes? Does it make sound from where it is hanged...

Just a front row close up. But damn I like how much berries there are, probably 2-3weeks from being ripe

Yes, you could flush with mild nutrient solution. This would flush the excesses if there is build up, but still have some nutrients in it. But I reckon there's atleast some Mg deficiency. What kind of water did you have? Excess calcium could lead to Mg and K deficiency.

Well, not familiar with the brand. They probably have plenty of products. You have not given any info on products you use, except for the brand. Nor the amounts you are using.

Looks a lot like Mg deficiency to me, maybe some potassium aswell. Would be easier to determine if we would know better what you have been feeding.