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[Bluey]

I know nothing about any of the ferts or suppliments you are using...zip

[GhettoStyle]

Today I changed it again, added 100 cal-mag and the nuts all came out at 460 PPM.

[GhettoStyle]

Probably compatible! It seems like Cal-Mag should be compatible with third-party manufacturers! I am using Cal-Mag BAC 2.0
What do you think about Canna and BAC fertilizers?

[GhettoStyle]

what is the ideal temperature for roots of 20C degrees?

[GhettoStyle]

[GhettoStyle]

my Cal-Mag BAC 2.0 it is compatible with my fertilizers Canna Aqua Vega
There had never been such a drop in pH before! maybe I accidentally changed something!
And which fertilizers would you recommend Canna or BAC or some others?

[Bluey]

The pH will drop if the calmag is not compatible with your base nutes. It will go off and after 7 days stink. Your plants will die if that is the case and you don't get onto it.

Are they compatible?

[GhettoStyle]

There is no debris from the roots in the bucket! I have already replaced the solution, added 100 ppm cal-mag and 100 ppm fertilizer, the total ppm came out 300! so the pH drops after that too! I think it has to do with fertilizers!because of them, it looks like the pH drops and the plant itself lowers it, but I don't understand what needs to be added more fertilizers?

[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]

OK, I'll replace the solution completely! You say that at this stage you are making 1200 PPM, the table that you sent earlier indicates 0.9 - 1.1 EC, then how much do I need to do? And yet I can't see a change in the solution level, I can't see a change in PPM, because if there are any changes, they are so small that I don't notice them! But what I notice every day is how the pH drops!!!! Is the pH falling due to a lack of fertilizers?

[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?