Ok i brought the ph down to around 5.9. i didn't want to have to do a reservoir change so early due to disturbing the plants, I'm thinking i will next weekend. I'm gonna run this and see how it reacts. I probably shouldn't be going too crazy changing things when the other three plants look great. This one is still growing it's new leaves fine so maybe it's just the way it is
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First time growing
- Thread starter Jsimo
- Start date
Well it seems that the first leaves on this one are gradually getting worse. Can't really pinpoint what's going on. But it is still growing. Could it be a nutrient deficiency since it's happening on the lower leaves? I've only got it up to about 300 ppm (plain water is 175). But the seed leaves haven't even died off yet. I wouldn't think the nutrients are too high since my smaller plants aren't having issues. My ph has seemed to keep drifting upwards over the past day or so. I adjusted it yesterday to 5.9, it was about 6.2 again last night so i adjusted it again and it did the same thing overnight. Don't want to stress too much over one plant but i don't want the others to follow suit.
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Alright, I'm getting another batch of water ready for a complete res change probably tonight or tomorrow morning to bring everything back to normal. I mixed it with nutrient levels according to week 2 on this chart I found here and will go from there. (2.5ml/gal of each bottle) I brought the rh up to 60 inside the tent now, the rh of the house is around 30 so that's basically what it's been in there thus far.
Complete res change completed. Ph'd to 5.6, added a half tsp per gallon of each of the gh trio nutes per the chart on this site. Keeping the humidifier going as well. So far only those first true leaves have had issues on the one plant. And that plant is starting it's third set. The others are all still working on their second set. Checked the roots and they seem to have exploded since the last time i checked.
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Well it didn't go as planned. Humidity went too high last night, was 81 when i woke up. Floor was wet. I should have had it on the timer with the lights but i was struggling to get the humidity up at all with the lights on. 3 plants had bent over, i toothpicked them back up. One had turned it's leaves already to compensate so hopefully it'll turn back. These stems are so weak but don't look diseased or anything. The plant I've had the problems with is showing the same signs on the second set of leaves now. So i might just forget about that one since the rest don't have it. Kinda sad since it was the fastest growing one. Ph had raised to 6.5 overnight, but hopefully that's something to do with the fresh res change. Got everything normalized again and letting the tent dry a bit and go from there.
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Well it's the first grow in the system, but it's the same reservoir and everything as previously, just a water change is all. Idk if i needed to let the water sit for a day or something. Not sure if that'll matter or not. I have a second tote that i filled with water and nutes yesterday morning. I let it sit with a lid on loosely while i was at work, came home and adjusted the ph then emptied the current reservoir and filled it with the fresh tote of water. Left the humidifier on and since the rh was still pretty low i closed the tent up and went to bed. The humidifier ran all night tho so i imagine that was a terrible idea since it ran while the lights were off and humidity went high. Plants bent over and had droplets on them. I wouldn't think a liter of water from the humidifier would have spiked the 15 gallons of water up 1 point if it had been poured in, let alone just misted in the air. This has all been weird, and I'm surprised i still have a couple plants looking pretty good still, except all having week stems.
Toker1
New member
If you add a bit of silica it will strengthen the stems up.
Sometimes new plastic can cause major PH swings like you have described. After about a week or two, the PH should settle a bit. As long as you are adding the proper buffers (found in most nutrients and hydro ph adjusting solutions).
Sometimes new plastic can cause major PH swings like you have described. After about a week or two, the PH should settle a bit. As long as you are adding the proper buffers (found in most nutrients and hydro ph adjusting solutions).
Things back to normal mostly. Got my humidifier set on the light timer to avoid that mistake again. Although i can't get much above 40% rh without heat getting to around 82°. Trying to balance sealing in the humidity and exhausting heat. Just put water in a couple cups on the floor to help the humidifier to see of that helps. All of the bent over plants seen to stand up fine now, but keeping the toothpicks in there. My ph raised about .6 in 24 hours so that's better than the last time by a long shot. Wondering if my water needs to sit to off gas something before a res change. I read something about dissolved c02 in tap water needing to off gas before ph being stable, don't know how true it is. Only took 1 quick picture, didn't want to let too much humidity out.
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My problem is exhausting the hot air exhausts the humid air which gets replaced with the dry air from outside the tent. So I'm kinda stuck with what i have unless i humidify my whole house which just isn't going to happen lol. Not sure if higher heat with higher rh is better, or cooler temps with more air exchanging but fairly low rh. I'm thinking the low rh here with more airflow might be a better situation.
Probably 30ish, maybe slightly lower sometimes. The tent is in my basement which is unfinished so no walls, and no door to the stairs or anything so I'd probably be trying to humidify about 2000 sq ft lol. I may invest in a larger humidifier for the house (for comfort) but i doubt it'll make s huge impact on the basement. But who knows. Might have to grab a few large ones