I’ve been dealing with this problem for a while (2-3 weeks) , I use Dr. Bergmans fertilizer, sold here on ILGM. A while back I noticed some yellowing, continued business as normal, kept a close eye, 2 leaves turned to 4, when I realized It was getting worse I began to trim them and test the soil.
I have an apera ph tds meter, one of the good ones. PH ran about 7.2 and TDS about 2.4 ppt. I don’t remember exactly. I flushed, and because It was late and I was out of daytime (indoor grow, my lights were about to shut off) I stopped and waited, 3 days later, I watered, tested again, it was still high as hell.
That night I didn’t flush, but things weren’t looking too bad, not many leaves affected yet.
Next water time, I flushed, and flushed, and neglected to check the tds, and gave about half the nutrients I usually do.
Next water time I checked, ph was normal, tds still high. Around 1.5 ppt.
Recently I flushed, got my ppt down to 0.5, it was getting late and my lights were going to shut off, so I ran an additional 4 gallons through, and added a half gallon of half strength fertilizer, to each plant.
This is only my second grow, I’m new but trying like hell. I’ve got a mars-hydro FC-E4800
Vivosun 4x8 grow tent, one plant is cali dream, the other is skywalker OG. I should’ve grown two of the same. It would’ve been easier on me. I also have a slight spider might problem, regularly treating with 70% isopropyl alcohol, trying not to soak the buds but getting the under foliage very well. Every 2 days, give or take. I’ve got 20-25 days left until my predicted harvest.
Temperatures are a little high, I’ve having a budget issue and getting the temps down is difficult. It’s 82.3 on average, a little higher sometimes. Never above 86, never below 75. And the plant is yellowing from the bottom up, no leaf curls on the top leaves.
Humidity hovers between 55-70%. I’m having a hard time running my dehumidifier during the day cycle because of high temperatures. I have ventilation and fans inside the tent.
I’m losing handfuls of leaves every few days. They’re yellowing at an increasing rate. I’ve got 25 days left. Someone HELP. I feel like I’ve invested so much in this hobby already and have yet to harvest a good sized quality batch.
Sorry it’s so long, I’m trying to be specific, help with diagnosing my troubles.
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