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HYDRO What's going bad with the growing of my plant ?

That’s a lot of nutrients and additives for such a young plant. I don’t even know what all those are for, but some look like they are for flowering stage (use only during flowering) and some are for root stimulation (only needed until roots reach water). Here’s what I use for my grows:
- micro + veg OR flower (typical 3 part nutrients) depending which stage of growth the plant is in.
- CalMag (for the extra calcium)
- Hygrozyme (root protection)

That’s it.... That’s all.....I do not ever use both flower and veg nutrients at the same time. It’s one or the other added to the micro nutrients. **Reduce your nutes to the bare minimum micro+Veg, CalMag, and hydroguard (or whatever you use for root treatment)** It will take a few days for your plant to settle into the new diet and balance out all the excess she has been fed.

Next issue....you can’t just “add something” when the EC gets low. This causes a buildup of unconsumed nutes that will become toxic to the plant. For the size/age of your plant, you should be doing a full water change every 7-10 days with *one* additional plain water top-up in between. This prevents a toxic buildup of excess nutes. If you read my signature block below my posts, you will see the 3 key things that need to be checked every day for hydro: water level, ppm/EC, pH.

As for pumps....
1) Do not install a pump INSIDE the reservoir. This contributes to excess warming of the solution and leads to root issues. Plus, it takes up valuable space away from the total volume of solution in the DWC pail.
2) Oxygen in the solution is very important. I assume you are using a regular air pump since you mentioned a stone in your comment. If possible, mount the air pump so it is slightly higher than the top of your reservoir. It can be placed lower, but only if you have a check-valve in line so the water doesn’t siphon out of the bucket during a power failure. This can help to introduce cooler air into the reservoir to prevent root rot. Placing the air pump up high in the tent will mean it pumps warm air into the reservoir which is a recipe for disaster.
3) pumping water through the rockwool cube creates issues with “trunk rot” and higher “root rot”. Top feeding is only necessary until the roots reach the water in your reservoir. Once they dip their toes in the water, they are now fully up and running.

I made a comment on your Growdiaries journal. I needed to correct the record on that comment from someone that claimed DWC can’t get root rot 😂
 
I should also mention that when you fill you pail, only fill it so that the water level is just below the basket. You want a small air gap between the water and the basket.
 
thanks so much YYCannabis these kind of suggestions are exactly what I need as newbie grower.

To give an answer to your question about my grow box setup (pumps, pipes and so on), I uploaded a video on my diary, you can see it here:


YYCannabis said:
ou should be doing a full water change every 7-10 days with *one* additional plain water top-up in between.
Click to expand...

Ok, so I think this is the time to do it. I learned the lesson: only few and specific nutes like: flora micro grow and cal-mag (I need it starting from distilled water). At the moment I don't have any root protection product, but only root stimulator, and I didn't find the Hygrozyme , but I think I can buy and use NITROZYME instead. Is it ok ?.


I've a couple of questions here:

1) before to change the res, I should make a water flush using the flora kleen and clean water or I should only change the res ?

2) as far as I understood is better not to follow the GHE chart, so what is in your opinion the best mix for my growing stage ? something like this can work ?
  • micro 0,8 ml/L
  • grow 1,5 ml/L
  • calmag 0,8 ml/L
  • nitrozyme ???

YYCannabis said:
3 key things that need to be checked every day for hydro: water level, ppm/EC, pH.
Click to expand...

I learned this lesson as well ! I'm tracking about every 12h all these values and taking the corrective actions following the chart you posted.

As far as I can see for now: the water goes down, the Ec reamin static and the PH goes up. When I see the PH goes up to 6.8, I just add a little of PH- to balance the water.

Also I'm trying to follow the T/H chart.

As you can see from the pictures of my diary, it seems the growing is going better now, thanks to your advice. I am very grateful !

Bye

J.
 
Good video 👍
Your setup looks nice and I’m glad you have all those pumps outside the tent.

As for nutes....yea, you need some root protection. Nitrozyme won’t work as that is a growth enhancer for the plant and not a root protection additive.

To answer your questions:
1) i don’t think you need to do anything for the res change, other than wipe everything clean. You can use hydrogen peroxide to clean/disinfect it all then start fresh.
2) start with your nutes at the amounts you posted, after a week of monitoring you should be able to tell if it is enough for her.

All the other additives you bought you can put away for now. Once you get through this first garden you will have a better understanding of the plants needs at different stages of growth, and maybe next garden you can begin to use some of the additives at the right stages of plant development.
 
it's just great ! thx a lot, I will follow your advices.
Just a question: as I 'm not finding the Hygrozyme, there is some other product that I can use instead ?
maybe Cannazym ? BioBizz Root-Juice ?
 
Last edited:
I can’t say what all the options are for root treatment. Where i live (Canada) hygrozyme is what’s available to me, but i can’t buy hydroguard which is what most of the American growers seem to use. So, depending where you live might affect what products are available.

Maybe make a new topic post and ask for advice from growers that are more local to where you live. Or if you have any local “garden stores” or hydroponic stores, ask them what they have available.
 
Completely agree with YYC. Be sure you are checking pH (with a well calibrated pH meter) and coming in at the right range. I don’t think the cheap ones are so bad but learn to calibrate it if you don’t already know and get the necessary chemicals. I like to get a bottle of reference solution premixed so I know with certainty how far off my meter is (they can slip out of whack a lot easier than I’d realized). I am giving you wisdom on something I learned the hard way :)
 
Ignore me, it looks like you are already looking at pH. I have to learn to read to the end before I write something 😀
 
feeding.PNG

The EC now is between 1,3 - 1,4
 
Hi my friend YYCannabis , hope your are well !
My grow is going to finish, I'm near to ripening stage and thx to your advices I finally was able to arrive where I am.

I had just a big issue with my PH meter that was broken and for that I dispensed to my girl a lot of acid solution, but now she looks better.

Can I please ask you to give a look to my diary here and give me some of your precious advice in this delicate phase?

Thanks a lot my buddy, it's also thanks to you I'm arrived here!
Best.
J.
 
YYCannabis great post above about your approach to dwc and nutes. Question for you - I am a coco grower considering dwc. I use the suggested GWE feeding schedule for coco (or rather a close but personalized version of it) that does call for a mix of veg and bloom nutes, although the volumes of each shift as the plant grows, swinging from one to the other. Is having veg or bloom nutes but not both at the same time a personal decision for you or is it a dwc thing that most dwc growers follow? Thx!
 
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