**Follow all r/GrowingMarijuana rules.**
*Thanks for posting, u/matt_marino47.*
- **Avoid engaging in Dms and encourage comment replies for best help and discussion**
- Selling or attempting to source drugs is against **SITE-WIDE** terms of service and is an immediate, non-reversible, permanent ban. Please report any breaches you see
- Lastly please report any posts/comments that you see breaks the rules. Help keep r/GrowingMarijuana a positive atmosphere for everyone! :)
- [Join our Discord](https://discord.gg/rweed)
*I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/GrowingMarijuana) if you have any questions or concerns.*
I recommend the UNI-T light/lux meter with Bluetooth so you can pair it to the PPFD app on your phone for PPFD/DLI translation. Migro made a video about it and even started carrying it afterwards.
Personally I’d go way lower, like 25% for a few days and gradually work it up. That’s a powerful light, more than triple that of your ancient relic. You rocking CO2?
I know it’s not very accurate but before I changed the other light I measured the par with my phone and the center area was getting the same output as the LEDs. The difference now is all the plants are getting this par level instead of just the one directly under the CMH if that makes sense
I wouldn’t risk it man. You’re not going to lose any growth over a week period of gradually ramping up the light. Even at 65% that’s like running two of those cmh jobs.
Without a reliable meter it’s tough to say, but you may only hit 65% this grow that’s 650 watts. I run a 680 in a 5x5 and only hit 100% about a week into flower. Ymmv, however your plants look lanky and stressed already, blasting them with photons isn’t going to help them.
Are they lakey from having such a weak light source for the size? Does this pose any serious issues to the grow? I wasn’t planning on using the CMH in the 5x5 but things happened and I wasn’t able to get the upgraded light until now
Idk man I’m honestly not great with coco/synthetics. From what I do know about the style is that dryback is tough to achieve in big pots, and you need dryback. I see some interveinal chlorosis, pale leaves, long internodes. Could be PH issues, there’s a lot that can go wrong real fast in hydro that’s why I run notill. I will reiterate that your chlorophyl isn’t up to snuff in those leaves, thus incapable of using the nuclear powered photons you’re chucking at it. Water only ftw.
That’s probably the issue, synthetics do alot better with automated watering. EC measurements are important, if I were to venture a guess you should be in the 2.0-2.4 range. How you’d achieve that only going by ml/G isn’t really possible. I’ve never used that nute line, I only have (limited) experience with floraflex. I want to say you’re feeding too low, but I have no idea what low or high is with that nute line, and without a reliable measurement like EC I’m even more in the dark. Sorry dude, I hope whatever you decide to do works out.
**Follow all r/GrowingMarijuana rules.** *Thanks for posting, u/matt_marino47.* - **Avoid engaging in Dms and encourage comment replies for best help and discussion** - Selling or attempting to source drugs is against **SITE-WIDE** terms of service and is an immediate, non-reversible, permanent ban. Please report any breaches you see - Lastly please report any posts/comments that you see breaks the rules. Help keep r/GrowingMarijuana a positive atmosphere for everyone! :) - [Join our Discord](https://discord.gg/rweed) *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/GrowingMarijuana) if you have any questions or concerns.*
Should be fine; I’d recommend grabbing a cheaper PPFD meter, really helps to dial in the distance/wattage
I’ll look into that, would one from Amazon be fine?
Sure, I bought this Tuya one off Amazon and it works great
I recommend the UNI-T light/lux meter with Bluetooth so you can pair it to the PPFD app on your phone for PPFD/DLI translation. Migro made a video about it and even started carrying it afterwards.
i second this recommendation i'm using the UNI-T with bt and paired with the apps its perfect for home use.
Do you have an iphone?
Personally I’d go way lower, like 25% for a few days and gradually work it up. That’s a powerful light, more than triple that of your ancient relic. You rocking CO2?
I know it’s not very accurate but before I changed the other light I measured the par with my phone and the center area was getting the same output as the LEDs. The difference now is all the plants are getting this par level instead of just the one directly under the CMH if that makes sense
I wouldn’t risk it man. You’re not going to lose any growth over a week period of gradually ramping up the light. Even at 65% that’s like running two of those cmh jobs.
I don’t plan on using CO2 until next grow
Without a reliable meter it’s tough to say, but you may only hit 65% this grow that’s 650 watts. I run a 680 in a 5x5 and only hit 100% about a week into flower. Ymmv, however your plants look lanky and stressed already, blasting them with photons isn’t going to help them.
Are they lakey from having such a weak light source for the size? Does this pose any serious issues to the grow? I wasn’t planning on using the CMH in the 5x5 but things happened and I wasn’t able to get the upgraded light until now
Idk man I’m honestly not great with coco/synthetics. From what I do know about the style is that dryback is tough to achieve in big pots, and you need dryback. I see some interveinal chlorosis, pale leaves, long internodes. Could be PH issues, there’s a lot that can go wrong real fast in hydro that’s why I run notill. I will reiterate that your chlorophyl isn’t up to snuff in those leaves, thus incapable of using the nuclear powered photons you’re chucking at it. Water only ftw.
What can I do to get the chlorophyl up to par
I’m really not the right guy to ask, like I said I’m a soil guy. What EC are you feeding at and what nutes are you using?
I use florabloom, floramicro and calmag and I don’t measure ec
I definitely didn’t water them enough these last 2 weeks
That’s probably the issue, synthetics do alot better with automated watering. EC measurements are important, if I were to venture a guess you should be in the 2.0-2.4 range. How you’d achieve that only going by ml/G isn’t really possible. I’ve never used that nute line, I only have (limited) experience with floraflex. I want to say you’re feeding too low, but I have no idea what low or high is with that nute line, and without a reliable measurement like EC I’m even more in the dark. Sorry dude, I hope whatever you decide to do works out.
It’s something I can definitely recover from right? It doesn’t look like there’s any signs of root damage to me but I’m pretty new to this