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After your comment about P def, i started to give half PK dose again. I continued to monitor the runoff. It kept exceeding +0.3 EC so i gathered more confidence that iam overfeeding and reduced EC from 1.2 to 1.0 and later to 0.85. Also i tried to dail down the spray intervals, but it seems...

I might see some rust spots now appearing more on the leaves instead of the sides. So far they were only on the sides. P deficiency now?

Thanks, that upped my motivation :-) Seems iam not fully off-track and might acutally harvest something. I cut some leaves, lower buds and branches. I tend to say the symptons on the leaves are not progressing furhter. Runoff data this morning: PH-IN: 6.2 PH-OUT: 5.8 EC-IN: 1.2 EC-OUT: 1.4...

Despite all the problems, the buds seem to be growing a little. Iam wondering how frosty the plants are already. They are in week 4 of flowering. The strain has 8-10 weeks. Iam tempted to cut some more leaves that are damaged, but i do not want to over defoliate. Should i?

I had an incident last night. To measure the runoff i had detached the backflow. When i attached it back it was leaking a bit unnoticed. The water accumulated on the ground, only a little, but enough to trigger my leak detection, which then shutdown the whole system. Luckily before going to...

I use to sabotage myself setting the goals too high. Iam not an AN fanboy, but iam tied with the line this run. What nutrients are you using? Are you using PK booster in flower?

The "root temp too high" problem will resolve itself soon as we are approaching winter. At all times except a few summer months i will be able to draw cool air. Soon i will be dealing with cold problems, so i hold myself back to work on solutions for the temps while i have already some good...

Hey, thank you. DTW is definitively appealing. I had no clog so far or i didnt noticed. I would love to talk to Atomizer, but i see no way to PM. Is it because iam a new user?

The water change interval is weekly, while i changed it more often during all my try and error. Since yesterday i see a bit more progression of the signs on the leaves, despite the PK shot. Meanwhile i had a reply from AN that they see the plant is underfed. Yesterday i had a reply from the...

So yeah, here are some root pics. Also a full plant pic. Thank you guys so much already for helping! Iam still working on dailing in. At some point i had given them 30 seconds spray, what i think has drowned them and grew hydro roots instead of aero roots. Also at one point i threw 100%...

I found this somewhere: "When runoff pH is lower than input pH - Usually, if the pH is lower by more than .5 points of the input pH then you are overfeeding." "When runoff pH is higher than input pH- Usually if the pH is higher than .5 point of the input pH then you are not feeding enough and...

I already apply mid/late flower nutrients. The only thing that would change later, according to the AN schema, is the addition of "Overdrive". Iam still totally clueless, however with my little information iam still leaning towards excess. The problem seems to be still "active". Newer leaves...

The roots took some damange earlier in the grow but mostly recovered. As the symptoms didnt went away but also didnt increase much over the weekend. Suspecting potassium deficiency, i gave a bit more PK booster. It seems that the symptoms have increased a bit, so i looked at "Potassium excess"...

I reduced the nutrient strength again to 25% without the cal mag. PH is at 5.8 and EC at 0.84. I just dont understand the dynamics of nutrient uptake in high pressure aeroponics. I currently spray 3 seconds, with 180 seconds pause. If i spray so little wouldnt i have to increase the nutrient...

The lights are two HortiOne 600 dimmed to 800 PPFD. Due to stretch and limited ability to move the lights higher (i fixed it now) the plants might have received 1000-1200 PPFD for a few days. And the temps are also relatively high at 25-28 C. The sides of the leaves are not turning up but the...

I cannot figure out whats wrong. The strain is Permanent Marker, 4 weeks into flowering. I currently give 50% strength AN nutes in a HPA system. I messed a lot with the spray times, but it seems that iam somewhere in the right zone now. I had tried less and more nutrients, with and without cal...

Power outages: Where i operate, luckily power outages are very rare. We had one like 2-3 years ago that lastet a couple of hours. As of now that is not a problem iam adressing at all. I was eyeballing with this device...

Iam an engineer playing around with hydroponics for some years. For me, aeroponics is the next logical step. Problems, challanges, yes, but there are also solutions. Iam willing to find and apply them. Everyone has to choose a way that works for him. For me its recirculating hydro. If not a lot...

Thanks for joining my thread. That will depend on if we can get the system dailed in soon. The vehicle is ready, passengers are seated, we just need a TAG fligh officer here to give us directions for takeoff.

According to this article where my nozzle size is between the two mentioned, i think it should be not more than 90 PSI? Taking into accound that ideal droplet sizes are larger, the pressure has to be even lower? https://www.tandfonline.com/doi/full/10.1080/17429145.2018.1472308 "The jet spray...