Oh dang I never knew that. All my nodes are really close together and I kind of wanted them to stretch lol
Yes I was and at full strength. Ppm’s were way too high. Hopefully she recovers from the flush and I can reset/aim for 1,000
I think you are spot on about the nitrogen, but I’d be surprised if it was overwatering. I only water like every 4-5 days as needed when soil is dry. Hopefully she recovers from the flush and I can reset and start aiming for 1,000
You can increase the outside numbers and lower the center 1100 to around 800 or a DLI of 50-60 by raising the fixture, worth a shot Grow Brow but 1100 is too much 
For the Photone app, when you calibrated it for your HLG 320 Respec what number of PPFD’s did you type in at how many inches? I need to make sure i got mine right. Or if you have 300 Respec even… thank you a ton in advance!
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No calibrating needed or an option to enter numbers. I downloaded this app over 2 years ago when it was free. All I have to do is keep the photo lens covered with copy paper
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Great, then as i suspected, it doesn’t even need calibrated. I made an observation. Listen, when i calibrated it the other day to one of my lights i took note of the reading in custom calibration setting then switched back to the factory calibration and they both matched. I just wasnt sure if my calibration was off a bit though. But you confirmed this for me. Its been on my mind. Thank you brother.
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I mean I just went in and raised it, but I have 4 different plants all at 4 different heights. PPFD is ranging anywhere from 800 to 1,000 now and DLI from 34-42. But the ones with 800 PPFD are like 24” from the light now, when the recommendation in the guide that came with the light literally says “flowering: 12”-18”” and so far even with the lights being as close as I had them I’ve never seen any bleached leaves or burnt tips or anything like that so I’m really not sure what to do. How is it even possible to maintain PPFD/DLI for multiple plants at multiple different heights? And what is an appropriate range for them during flower? And why haven’t they shown any signs of there being a problem with the light being so close if you’re saying PPFD’s/DLI’s we’re too high?
I did the best I can I guess man. I’ve got PPFD ranging from 850-1,100 on all 4 plants with a DLI of 40-52. I’m not sure what I’m supposed to do about the taller plants, but they don’t seem to be bothered by the light. The plants with a PPFD of 850 and a DLI of 40 are also 4” under the max range recommendation for this light (18” during flower) sitting at 22” from the light to the top of the plant. The other one on the high end (1,100 and 52) is 16” from the light, and in the manual it says they can be as close as 12” during flower, which I don’t see how that’s possible if the ppfd’s and DLI are so high at 16”. I didn’t realize this was such a problem, I’ve just been making sure the light is set at the correct distance instructed by the manual and my plants have seemed to be okay so far, but if this is something I need to be concerned with then I’d really like to figure out a solution.
Recommended absent of a meter. Put the shorter plants on a booster seat so that the canopy across the grow space is as even as possible Growmie
- That’s a super good idea bro the only problem with that is the PPFD at the tallest plant is 1,100 so then it would be too high for all of them -
This was a real response of mine until I realized I would then just raise the light 
you’re a genius bro! Doing this now!
So the “recommendations” they give are just like a baseline? You would think they would recommend distances based off of preferred PPFD and DLI for cannabis, considering I highly doubt anyone is buying a Vivosun light for anything else… how stupid. Or they should at least put a PPFD/DLI map in their manual for people like you who know what the plants actually prefer. The recommendations they’ve got in their manual are way too close
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Nice! Those look beautiful bro! Hey quick question, what should I do if I am growing in Happy Frog soil when it comes to runoff? I had a pretty bad salt build up that I flushed out last week, and I’m about to water with Recharge for the first time now along with some more nutes. I’m in week 6 of flower on one plant and would say I only have like 2 weeks left if that. Should I water til runoff or no? They say Happy Frog is organic soil but it’s not technically living soil, is it? And I know that out of the trio, their Big Bloom is the only true organic fertilizer IIRC. I just don’t know if watering til runoff is essentially flushing out the stuff that Recharge is supposed to amend/activate, or if it doesn’t matter since it’s not technically living soil, and I should be watering til runoff so that I don’t continue getting salt build up. But, that technically shouldn’t really be an issue again for this plant, considering she only has a couple weeks of life left anyway. I do need to feed at least one more time though because she looks deficient. I know a lot of people stop feeding the last 2 weeks but so far everyone is telling me I need to feed her. All her leaves are yellowing. Which is confusing to me bc aren’t plants supposed to do that towards the end due to nitrogen deficiency which is fine because they don’t need nitrogen anymore? How do they know she needs more phosphorus/potassium and that I shouldn’t be stopping with the nutes in preparation of harvesting? How do you even know when to stop?
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Have you been watering at a PH of 6.5 with run off and testing the PPMs and PH. The Happy Frog will feed the plant for approximately 4 weeks depending on the size of the vessel. If you don’t have any run off numbers recorded, I would suggest straight H2O at 6.5 and to liberal run off, catch a sample and check the PPMs and if below 1000 it’s time for nutrients. For soil I would use a PPM range of 800-1200 as a target with a PH of 6.5 with a range of 6.3-6.8. Use the full trio line up and get a decent run off to rinse any accumulated salts from the previous feeding, happy root zone….happy plant
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Thanks brother and yes I’ve been doing that. I think I got the best setup for my lights now. All plants are around 18” from the light with good PPFD and DLI, except the DLI rating is for a 12 hour period vs an 18 hour period. If I go based off of 18 hours it’s up way too high. Which that leads me to wonder, how are people growing their autos under such constant light if the plants only prefer a DLI of 30-45 during flower? Getting so much light every day way exceeds that, and if giving it that much light (18 to 20 to 24 hours) you would need to raise your lights up so much to the point where your PPFD would be super super low? So does this mean I have to switch them to a 12-12 cycle and stop doing 18/6, otherwise they will get too much light? Everywhere/everyone online says 18/6 is the best the entire grow, some even say 24/0, but I don’t see how it’s possible to provide your plants with the correct amount of light that way. What are your thoughts?
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Hello, this is my first grow and I’m having issues with these girls. All four are zkittles. I’m watering every 3-4 days depending on when cup is light. I’m also feeding cal mag and grow big at 400ppm and 6.2-6.5 ph in fox farm ocean floor soil. Any help will be extremely appreciated.
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What is temp/RH around your canopy? Temp should be anywhere from 70-80 with a high RH of around 70% rn.
Also bro if you’re using Ocean Forest, you literally don’t need to give them any nutes for like 6 weeks. Ocean Forest is a relatively hot soil. This looks like it might be nutrient burn to me.
Also how close are your lights/what wattage are you running?
I agree there’s only so much they can absorb before needing some dark time. I run seedlings 24/0, 18/6 in veg and 12/12 for flower growing Photo Periods, for autos I run 24/0 for the seedling period and 18/6 through harvest
The FF medium will feed the plant for approximately 6 weeks before nutrients are needed. What’s the temps, RH and lighting you’re under and in? I would transplant these to their final pot using the FF medium, water approximately 4 ounces about 3” away from the main to promote root growth. Increase the watering amount not frequency to every 3 days once the plant is healthy and you have 4-5 nodes of growth start watering to run off
Okay, thank you very much. Temp is 75 RH is 60 and light is a 480w spider farmer hung at 2ft.
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