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EC is now still, EC slightly rising, water consumption is +- the same. It's now 3 days I changed the res tank and lowered the EC. But the leaves are getting worse.

If there will not be any improvement tomorrow, I will change the res to just basic nutes - 0,5EC. What about trying to apply Mg foliary? To compensate that deficiency?

That analysis is real crap. It is also seen in the 3part as the grow part contains magnesium in ingredients, but not in analysis.

hydroponics - flood and drain bucket system

I am using basic+B-52+Big Bud+BudFactor+Bud Candy now. It is what AN recommends according to feed chart. It is always in the flowering - 2:1=basic:additives.

I was using them at a half strength - which means 2ml/l basic 3part, 1ml/l additives. I changed the water in the res twice: 1. when flipped to 12/12, 2. when plants stopped to grow in height. This half strength made about 1,5EC and the plants were drinking nutes more then water (EC was falling).

Those 3part basic nutes are Potassium rich on themselves. Big Bud is just 0-1-3 and 50% dosage in comparison with basic nutes. And there are other additives AN is offering in their line with potassium content. But I will follow your recommendation if the previous steps will not work.

I am trying to find the reason why all this happened. That AN base mix has to have enough Mg inside bcs when you start to grow until flowering, there are no additives which contain Mg and the plants are not suffering. 1-2 days before all this mess happened I've done few things: 1. Removed some...

Actually they are wilting in the lower part (big fan leaves). All leaves, not just these hurt by deficiency. Higher leaves look OK - not wilting. I also realized I removed about 20% fan leaves that were shading bud sites a day before it started to show some problem in the res tank. But I didn't...

Just a quick questions to my thread: Might it be an overwatering problem? I read about Mg,Cal,K nute-lock when you flood them too often (especially on a long term)? Could slight overwatering each day cause this? As long as Magnesium is key-element to photosynthesis, then the plant is consuming...

This could be quite difficult to write bcs - there is some "analysis" title on the bottle, but when you look at those ingredients inside (also written on the bottle), you will see that there are some difference. Not every substance contained in is in the analysis. Especially when I look at one...

It could be very interesting to put airstones in the half of the plants and watch them. Then make a comparison in size/bud sites/yield. Once I want to try this: https://www.amazon.com/O2-Grow-Dissolved-Oxygen-Emitter/dp/B01FROGNZO R U sure the tan is bad for your plants? Basic nutrients tan...

As a MacOS user.... :-D But I noticed that there are always sth like 2:1=cal:mag ratio in that post. And that is quite interesting as you get sth like 3:1 when using AN full nute-line.

I have a very first sign of improvement. EC didn't rise this day. I need to understand these micro and secondary nutes my plants need and a dosage through the plant's life. Not just using nutrition companies's feedcharts like a blind. Any recommendation, please? (scientific based literature)

Two days ago. And dont forget the "ph perfect solution" in the AN nutes. I also bought a new EC meter few days ago.

I am trying to keep the proportions of the nutes as it always is 2:1=basic:additives (in the flower period). Actually it's mostly 1/4 strength when you compare it to AN feed chart. But when everything was fine, PH wasn't fluctuating by much. As the EC was falling, PH was rising - that is...

OMG, what a crap I bought :-D so called best hydroponic nutes on the market (EU)

I attached few pics. The two last of them are B-52/Big Bud and Micro part of the 3part basic nutes. EC was downed from 1,5 to 0,45 after a flush. Flush was made by using RO water + flawless finish (as AN recommends). But I realized one other change I made about 10 days ago. I stopped using Bud...

I checked (just to be sure) what content of cal/mag contain that 3part formula and found out that there is cal/mag ratio 2,4%/0,1%. As long as I use RO water, this seems to be very low amount of Magnesium as it needs to be something like 2/1 ratio. Am I wrong or this could be the reason? I...

I am using Advanced Nutrients 3part mix + Big Bud + B-52...the same proportion as AN recommends. Very potassium rich. Already flushed and mixed new reservoir with EC lowered to 0,5...but EC and PH still rising.