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[YYCannabis]

If your pH is dropping, then it’s probably due to the roots not up taking any nutes and the water is acidifying. When you do a FULL WATER CHANGE be sure to look at the waste water to see if there is and small debris in the water. If there is, then it’s a sign that the secondary roots were shedding micro-roots. That debris in the water is rotting and causing bacterial problems and therefore causing pH problems. Also the loss of micro-roots means that the roots damaged and can’t uptake.

Previously, I recommended using line two of the grow guide. Now i would suggest using line one at the upper end of the measured amounts. The roots will need a lower ec/ppm until they can heal and try to regenerate.

Final Recommendation (Action Plan)
Step 1: Full System Reset
- Drain and clean the bucket.
- Refill with fresh tap water plus 100–150 ppm CalMag, then add base nutrients.
- Set pH to 5.8 and only adjust if it drops below 5.3 or rises above 6.3.

Step 2: Daily Monitoring (and i cannot emphasize this enough)
- **Track these daily and write them down:**
- Water level – is it dropping?
- pH – is it trending up or down?
- EC/PPM – rising means underfeeding; falling means the plant is feeding.

Step 3: Don’t Increase PPM Yet
- Stay at the ppm until the plant starts drinking and pH stabilizes.
- Once stable, watch the new growth. If it’s healthily growing, then do a water change about 5 days after healthy growth.

Step 4: Remove Dead Leaves
- Cut off all fully yellowed or crispy leaves—they’re wasting the plant’s energy.


This is one of the benefits of doing DWC is that you can instantly resolve a lot of issue with a fresh water change in just a few minutes.

[Bluey]

I run a couple of aeroponics setu0s and only noticed a drop when the bucket was so full of roots it was a mess. Likely it dropped though because I fell over the air pump cord or juts were blocked. It always ris4s apart from that one time

[GhettoStyle]

Bro are you here? I have a question for you, I remember you saying that your solution concentration at this stage will be 1200 ppm! bro, what did I do? I drained all the rastovr and filled in the water, leveled the pH! so I thought that the pH drops every day because the concentration is too high! but now I understand that the pH drops every day due to lack of concentration! I tried 650 PPM - 750 PPM and the pH is still falling today I did 900 PPM, I hope the pH will stop falling! What do you think about this?

[YYCannabis]

I use 5 gallon buckets and my nute strength for a plant that age would be around 1200ppm (500 scale). I use a different brand from you, but for most DWC nutes, the measurable ppm should be the same.

She’s starving. Use a clean bucket, or make sure her bucket is clean inside….make a fresh batch of water and nutes for her following the feed schedule i posted to you earlier. Make sure the water level in the bucket is just below the basket, maybe a 1/2” or so. Make sure your airstone is pumping out lots of bubbles.

The sooner you get it done, the sooner she recovers.

And pluck off those large leaves that are yellow and dead. The plant is wasting energy trying to heal those leaves. Getting rid of those leaves will help the plant put energy where it’s needed.

[Bluey]

Sounds good

[GhettoStyle]

The roots are white! I can take a photo later!

[Bluey]

Check the roots....take a pic. Give them a rinse too. What color?

[GhettoStyle]

That's my previous question! I was creating a topic on the forum when the top leaves were swirling, but I figured it was because of the light, high temperature and low humidity!

https://forum.growweedeasy.com/forum/growing-community/646531-hello-friends-help-me-figure-it-out

[GhettoStyle]

it looks like I killed the plant so badly that it won't recover now((
initially, it was on water with calcium and magnesium 200 ppm and then I added nuts and made 300 ppm and then after a couple of days I made 400 ppm and the first symptoms of necrosis appeared
here is a photo of how the plant looks now! I cut off the bottom leaves as they are almost completely dry!


I also read about deficits on the forum! and I don't understand NPK mobile substances, so the symptoms will always go from the bottom up! Magnesium is also mobile! but calcium and sulfur are not mobile and the symptoms start from the top at a new growth! so the photos that I took today show that chlorosis is present on the newest leaves!!!

[GhettoStyle]

Yes, I use 5 gallon pots! The other day I raised the pm from 300 to 550 ppm and now the plant has stopped growing and the pH has started to drop from 6.0 to 5.2-5.3 every day! in my opinion, the feeding schedules from the manufacturer are very high! since it says 3-5 days and 520ppm in the table, these are big values! so I tried to make 550 ppm at week 3, so the plant stopped growing and the pH began to drop every day.

[YYCannabis]

Some questions for you:
1) What are you using for the DWC set-up? (5 gallon pails or something else?)
2) Are you using the full compliment of the Canna Aqua nutrients? Or only some of the products?
3) Are you following their feed guidelines? (See the image i attached from their website)
4) As a new grower, avoid adding nutes between water changes. Plants absorb nutrients at different ratios, so adding more nutes might provide some of the nutrients it’s looking for, but also risk creating too high a concentration in other nutrients.

I’m a DWC guy with a few years experience. Even now, if i have a nutrient issue that has me struggling to understand the cause of the problems, i do a full water change instead of cheating the nutes between water changes. Nutrients are cheap when a plant is that small.

So, to get on the path to getting that plant healthy:
1) do a full water change and follow the Canna Aqua feed schedule. From looking at that plant, your re still in the “Vegatative Phase I” of their feed schedule. (Line 2 of their guide).
2) Add your CalMag additive following the directions on the product.

[YYCannabis]

Does the BAC bottle say how much to use? (Their website has almost no useful product info)

[GhettoStyle]

I raised the EC to 1.1 545ppm
I change solution every week

[Bluey]

What EC are you currently using and how often are you emptying and refilling the tank with fresh?

[GhettoStyle]

I have an airstone! This is the main thing in DWC! I thought the pH was dropping because there weren't enough nuts!