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There was brown spots on fan leafs, pH level is 5....

paparazzi
paparazzistarted grow question 4 years ago
There was brown spots on fan leafs, pH level is 5.8, but i read that the problem is with calsium. And i need ph level 6.2 - 6.5. But limit for hydro is 6.0 ? What must i do ?
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Week 4
Leaves. Color - Mottling
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Darkwarsongs
Darkwarsongsanswered grow question 4 years ago
I agree with Cbalderson using a product like hydroguard or Uc roots is almost essential to happy health hydro growing... They are products that create a more stable and healthy environment for your roots.. Also consider blacking out your containers and even maybe the top part as well.. In my experience with LED they can penetrate the claypellets and shine light into the reservoir, very bad. You want your water to be in the darkness depths of hell basically. Just some food for thought but yes I highly recommend using a rootzone enhancer... It keeps your water's PH more stable as well, your ph will always fluctuate but I found after finding a sweet spot of UC roots to water. My water is much more stable requiring very little adjustments and in turn I use less of the ph up and down.. I check ph daily you should too, it's a good excuse to look at your plant. Iv'e had great success with hydro so if you have any more questions leave a comment on my diary. Good luck and happy growing :)
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Grey_Wolf
Grey_Wolfanswered grow question 4 years ago
@paparazzi Dump the reservoir Remix your nutes and Extra CalMag and ph it to 6 You'll probably need to keep adjusting the ph back up to 6 periodically as the plant takes up water I have a plant currently growing Hydroponically that suffered the same issues as well as a Phosphorus deficiency I managed to get the plant back to full health by keeping the ph at 6 as much as I could .
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DankGardener
DankGardeneranswered grow question 4 years ago
Check roots for root problem. This is the most common thing in hydro and will trigger nutrient defeciency like brown spots and burning of the tips etc... I personally recommend using a supplement called Botanicare Hydroguard for root problems because I’ve used it successfully to get rid of a terrible case of Root Rot. If you are sure it's calcium defeciency in hydro, calcium is best absorbed by the roots in the 6.2 – 6.5 pH range (in hydro, it’s generally recommended to keep the pH between 5.5 – 6.5, but calcium specifically tends to be best absorbed above 6.2)
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