WillieP
Well-Known Member
Destroyer,
Thanks for sharing your grow with us.
I'm pretty new at this, so take my advice for what it's worth.
I grow hydro, but Ebb and Flow, not DWC.
I would recommend a couple of things.
Your PH for hydro should run close to 5.6, it will naturally raise slowly. And with your water volume just a few drops of PH down will bring it back in range. This will help prevent nutrient lockout. PH of hydro is different than the PH for soil.
You can run a sterile reservoir, or one with benies (beneficial bacteria) like your hydroguard, but of course you can't run both at the same time.
I use benies, (a product that is only available in the USA). If you are concerned about root rot, you can research the use of H2O2 in the reservoir, it is a popular option. Also water temperature is an important factor in having a healthy reservoir. (you can also use the hydrogen peroxide to sterilize any of your equipment, like your airstones.)
It is the norm to change your nutrients in your reservoir weekly. The plants may use your nutrients at different rates, at different stages of growth. So potentially you could be low on one nutrient and high on another, but you EC/PPM could measure just fine the whole time.
The current brown spot and leaf discoloration issue you have looks like a calcium def to me.
I recommend when growing in hydro, at the first sign of a problem, check that your PH is where it should be. If it is, do a reservoir change and see if things improve. In your case, I would mix a batch of fresh nutrients, add a increased amount of Cal/Mag, and lower your PH to 5.6 after adding all you nutrients.
The only other input I have would be to check this site out...
Hope some of this helps,
WillieP
Thanks for sharing your grow with us.
I'm pretty new at this, so take my advice for what it's worth.
I grow hydro, but Ebb and Flow, not DWC.
I would recommend a couple of things.
Your PH for hydro should run close to 5.6, it will naturally raise slowly. And with your water volume just a few drops of PH down will bring it back in range. This will help prevent nutrient lockout. PH of hydro is different than the PH for soil.
You can run a sterile reservoir, or one with benies (beneficial bacteria) like your hydroguard, but of course you can't run both at the same time.
I use benies, (a product that is only available in the USA). If you are concerned about root rot, you can research the use of H2O2 in the reservoir, it is a popular option. Also water temperature is an important factor in having a healthy reservoir. (you can also use the hydrogen peroxide to sterilize any of your equipment, like your airstones.)
It is the norm to change your nutrients in your reservoir weekly. The plants may use your nutrients at different rates, at different stages of growth. So potentially you could be low on one nutrient and high on another, but you EC/PPM could measure just fine the whole time.
The current brown spot and leaf discoloration issue you have looks like a calcium def to me.
I recommend when growing in hydro, at the first sign of a problem, check that your PH is where it should be. If it is, do a reservoir change and see if things improve. In your case, I would mix a batch of fresh nutrients, add a increased amount of Cal/Mag, and lower your PH to 5.6 after adding all you nutrients.
The only other input I have would be to check this site out...
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Hope some of this helps,
WillieP