Stretched seedling needs support?

[hotrodharley]

Pics?

Sorry. I don't usually picture my stupid mistakes. Do not give half a shit who believes. To those knowing less than this guy (which is everyone) be aware you can bleach seedlings snow white with LED.

 

[zzyx]

Sorry. I don't usually picture my stupid mistakes. Do not give half a shit who believes. To those knowing less than this guy (which is everyone) be aware you can bleach seedlings snow white with LED.

I suppose if you put a strong enough led an inch from the top you could, but clearly, in this case, the seedling is stretching, indicating the need for stronger light.

 

[hotrodharley]

I suppose if you put a strong enough led an inch from the top you could, but clearly, in this case, the seedling is stretching, indicating the need for stronger light.

It was not an inch. Are you totally surrounded by dumbasses? I've run a few crops. And no shit this needs more. I addressed that sufficiently.

 

[zzyx]

Burying a seedling deeper to account for a lack of light is just plain bad advice!

 

[zzyx]

It was not an inch. Are you totally surrounded by dumbasses? I've run a few crops.

2 inches?

 

[twentyeight.threefive]

Burying a seedling deeper to account for a lack of light is just plain bad advice!

We've seen your nitrogen toxic plants. You might want to refrain from the advice category of posting.

 

[hotrodharley]

It was 80% at 20". Power was increased due to stretch. But obviously increased too much.

 

[hotrodharley]

I'll put it this way. I bought a cheap quantum PAR meter because this happened. Checked it against my neighbor's Apogee. Within 5 of the Apogee. Far more useful than an EC meter. Set it and forget it.

 

[LeastExpectedGrower]

Damned straight. First seedlings I had under a 105 watt LED. Bleached totally white. Now I invite you to try. Please.

Oh wait. Some idiot brings up the sun? Lol. What the hell does that have to do with this?

Also worth noting that the sun's intensity shifts across any given day. Depending on where someone lives, most likely it's at peak intensity for a short few hours mid-day and the rest of the day it's either increasing or decreasing its intensity. Completely different indoors where lamps are generally binary; on or off. So while yes we know the sun is bright, but it's totally possible to blast your plants indoors and provide way more DLI than the sun in lots of regions.

 

[zzyx]

Also worth noting that the sun's intensity shifts across any given day. Depending on where someone lives, most likely it's at peak intensity for a short few hours mid-day and the rest of the day it's either increasing or decreasing its intensity. Completely different indoors where lamps are generally binary; on or off. So while yes we know the sun is bright, but it's totally possible to blast your plants indoors and provide way more DLI than the sun in lots of regions.

Good point, but clearly, too much light is NOT OP’s problem.

 

[hotrodharley]

Also worth noting that the sun's intensity shifts across any given day. Depending on where someone lives, most likely it's at peak intensity for a short few hours mid-day and the rest of the day it's either increasing or decreasing its intensity. Completely different indoors where lamps are generally binary; on or off. So while yes we know the sun is bright, but it's totally possible to blast your plants indoors and provide way more DLI than the sun in lots of regions.

This event also pushed me to watch Dr Bruce Bugbee on YouTube. I've never watched cannabis stuff on YouTube. Well tried a couple. Too much self-promotion. But Bugbee is an educator and knows his stuff regarding lighting

 

[LeastExpectedGrower]

I'll put it this way. I bought a cheap quantum PAR meter because this happened. Checked it against my neighbor's Apogee. Within 5 of the Apogee. Far more useful than an EC meter. Set it and forget it.

I find even the Photone App is super valuable to me. Getting a good read on exactly how bright things *really are* rather than the whole x-inches from canopy thing is a really big help in giving your plants what they want. The other thought is if you're doing it in a tent...take your readings with the tent as zipped up as possible... the reflective difference was definitely more than I thought it would be.

I also put my phone/meter down at pot-level and watch the numbers as I dial in the dimmer or raise/lower the LED boards. While I measure at canopy top, if I know that I can adjust up or down by 50 or 100umol and get it pretty spot on for what I want at the canopy.

 

[LeastExpectedGrower]

This event also pushed me to watch Dr Bruce Bugbee on YouTube. I've never watched cannabis stuff on YouTube. Well tried a couple. Too much self-promotion. But Bugbee is an educator and knows his stuff regarding lighting

Not necessarily just looking at 'brightness' (whether you're bothering with lux or PPFD) and thinking in terms of the full day's light exposure makes perfect sense. So the DLI calculations really account for the variables in lighting way more effectively than just going bright or using a tape measure from your boards to the top of the plant.

I've mostly avoided YouTube growing advice for cannabis. So much junk out there. Though I've leaned on it for things like propagating and germinating roses, etc.

 

[hotrodharley]

I find even the Photone App is super valuable to me. Getting a good read on exactly how bright things *really are* rather than the whole x-inches from canopy thing is a really big help in giving your plants what they want. The other thought is if you're doing it in a tent...take your readings with the tent as zipped up as possible... the reflective difference was definitely more than I thought it would be.

I also put my phone/meter down at pot-level and watch the numbers as I dial in the dimmer or raise/lower the LED boards. While I measure at canopy top, if I know that I can adjust up or down by 50 or 100umol and get it pretty spot on for what I want at the canopy.

When you stick it under and start checking it's very educational. It's also very useful in plant rotation to try for equal coverage as much as possible. I've taken it to 3 other grows. All 3 changed settings. Just like I did.

 

[hotrodharley]

Not necessarily just looking at 'brightness' (whether you're bothering with lux or PPFD) and thinking in terms of the full day's light exposure makes perfect sense. So the DLI calculations really account for the variables in lighting way more effectively than just going bright or using a tape measure from your boards to the top of the plant.

I've mostly avoided YouTube growing advice for cannabis. So much junk out there. Though I've leaned on it for things like propagating and germinating roses, etc.

If you have not seen Bugbee you really should give it a try.

 

[LeastExpectedGrower]

Good point, but clearly, too much light is NOT OP’s problem.

If he's got a problem with figuring out how much light he needs then it doesn't matter if it's too much or too little... it's more about him being able to measure and get in the right ballpark no matter the direction.

And giving the ol' 'the sun is super bright and doesn't hurt plants' line doesn't help, because it gives the false impression that there's no such thing as too much light. And that's clearly not the case.

 

[LeastExpectedGrower]

If you have not seen Bugbee you really should give it a try.

I'll follow your advice and check it out.

And yes, metering your space and the parts of your plants can be really educational. It's one of the reasons I moved from having only one of my HLG225's to having three of them to try to even out the light and have it viable everywhere in my tent. Spent a lot of time with my plants being crammed close together to benefit from the light and more time rotating plants to make sure they had even coverage.

 

[zzyx]

If he's got a problem with figuring out how much light he needs then it doesn't matter if it's too much or too little... it's more about him being able to measure and get in the right ballpark no matter the direction.

And giving the ol' 'the sun is super bright and doesn't hurt plants' line doesn't help, because it gives the false impression that there's no such thing as too much light. And that's clearly not the case.

Good answer. Carry on.

 

[hotrodharley]

I'll follow your advice and check it out.

And yes, metering your space and the parts of your plants can be really educational. It's one of the reasons I moved from having only one of my HLG225's to having three of them to try to even out the light and have it viable everywhere in my tent. Spent a lot of time with my plants being crammed close together to benefit from the light and more time rotating plants to make sure they had even coverage.

I totally rearranged the grow I had going.


The first results.

 

[zzyx]

I'll follow your advice and check it out.

And yes, metering your space and the parts of your plants can be really educational. It's one of the reasons I moved from having only one of my HLG225's to having three of them to try to even out the light and have it viable everywhere in my tent. Spent a lot of time with my plants being crammed close together to benefit from the light and more time rotating plants to make sure they had even coverage.

The reason I grow in a vertical doughnut. Even distribution of light is very beneficial.