Is it okay to put seedling under 300w led ?

  • yes

    Votes: 38 90.5%
  • no

    Votes: 4 9.5%

  • Total voters
    42

FruitSpirit

Active Member
I am loving LED so far..... But i am running 550+ watts for 2 plants. Each plant has it own 600W (278+/- true watts). My LED's do throw heat but im sure its much less that the HPS.
Same, except I'm using 4 x 300w. Much the same, a benefit of two 300W is that i can lower independently on one side if i want to have more light on certain sides of the plant. Enjoy!
 

Michiganjesse

Well-Known Member
Hey guys, new to the growing scene here :leaf: and ive got a couple of questions id need answered:roll:.

LED-light: Galaxyhydro 300w LED growlight by Roleadro (link can be provided if needed)
Color: 9 band
Strains: 2 California Orange-Bud & one Lemon Haze

So ive currently got my seedlings under a 25w blue light spec bulb (first picture), ive used it before in seedling stage and it worked pretty well.So my question is when I should consider putting them under my LEDs. I was planning to let them grow for 1-2 weeks under the 25w bulb but im concerned about weather it will put out enough light for 3 seedlings or not and i dont want to risk them not making it.

Is it okay to put them under the leds now, if so at what distance ? Will they be able to handle the light or will it result in the plant getting damaged?

I will try to keep this thread updated as far as i can and any tips and or other methods of help are warmly welcomed.

Join me on this journey and with any kind of a helping hand we should be able to get these babys running.:-D
I sprout under 180 watt led works just fine
 

VenomGrower6990

Well-Known Member
How high are you putting your 300 for seedlings?. I will look at you blog soon :))
I have 600's. With this grow (2 Plants) i only vegged under one 600 LED @18" above the canopy and then switched to 2 600's for flower (1 600 Per plant). I kept both 600's 18" above the canopy for the stretch(Moved them up as plants stretched) and after they stopped stretching i keep them about 12" above the canopy. I am now vegging my next plants under 8 T5's for a faster flip to flower. I am now running a cabinet for veg and a separate tent for flower.
 

DopeD420

Member
Still looking good, the only thing i've noticed is this leaf starting to "fold" or whatever (image 1), but i think its nothing major to worry about. What i forgot to mention is that ive got the three of them in a small "Growbox" i built myself for early to mid veg, so as little light as possible can only be directed away from the inside. Still waiting for my order of Gerneral Hydroponics flower, bloom and micro nutes to get here, so i can give them their first feeding besides from just water.
By the way Venom, you got anything to say so far ? I appreciate that this thread has drawn quite a bit of attention so far, but I'd appreciate it even more if there would be more content aimed towards my grow than just asking questions (not to be a jerk or sth.).
Im on day 17 today and will be preparing everything for the LEDs time to shine in round about 4-5 days or so, I'll uptdate the thread once thing are up and running and then hopefully we should be heading straight toward flowerville :-D:leaf:
 

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DopeD420

Member
Do you have a thermometer in there? Looks a tad heat stressed.
Maybe more airflow...

Yeah but i had them in a small grow box, took them out of there yesterday because i noticed (a little later than i should have) that it might get too warm. Got them standing in a more open space now to keep them going until the LEDs get hung up (either saturday or monday im hoping).
In the picture ive added you can see (left lemon haze, rest cali orange) that the plant i uploaded the first picture of (middle one) seems to be hanging a little, i wouldnt really consider it drooping due to a lack or an overusage of water but rathermore I think it might be happening due to a lack of light (Got to get that LED running !). The leaves are showing the slightest yellowing (only on middle one), I need to know ASAP how i can get her to stant errect again (Im hoping this will happen once shes under LEDs). One thing i cant explain tho is why the other too look errect compared to the one in the middle, since all three of them have always been growing under the same conditions. Or could it be a sign of the plant wanting to feed on some nutrients please reply as soon as possible, I want to sort this out before it turn out to evolve into something major. Btw thernometer reads a constant 24°C but it might have been around 27°C in the small box i had them in.
 

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DopeD420

Member
Oh and I should have mentioned that i gave them a small feeding of natural tomato fert that contains nitrogen after seeing a starting yellowish tone on the leaves, hope this will do the trick until the general hydroponics stuff gets here and then ill be hopping onto a feeding schedule using that. Until then im keeping my fingers crossed and cant wait to put them under the LEDs :)
 

kmog33

Well-Known Member
So, You can put those seedlingsunder your led, that LED panels true draw is only around 120-150watts and will cover maybe 1x2' efficiently. I hope you planning on keeping them small.


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DopeD420

Member
So, You can put those seedlingsunder your led, that LED panels true draw is only around 120-150watts and will cover maybe 1x2' efficiently. I hope you planning on keeping them small.


Sent from my iPhone using Tapatalk
yep indeed planning on keeping them small did the first toppings already or as some like to call it a "micro-topping" with a sterilized pair of small scissors. Do you happen to have an idea or the eye to see whats going on with the one in the middle on the picture ? To me it seems like too weak light (the bulbs) and a mere nitrogen deficiency wich should be covered now since i gave them a feeding containing nitrogen.
 

kmog33

Well-Known Member
yep indeed planning on keeping them small did the first toppings already or as some like to call it a "micro-topping" with a sterilized pair of small scissors. Do you happen to have an idea or the eye to see whats going on with the one in the middle on the picture ? To me it seems like too weak light (the bulbs) and a mere nitrogen deficiency wich should be covered now since i gave them a feeding containing nitrogen.
They all look ok in the pics as far as I can see on my phone lol. What problem are you talking about?
 

DopeD420

Member
They all look ok in the pics as far as I can see on my phone lol. What problem are you talking about?

Talking about this slight yellowing (pic 1), wich might be a slight burn now that i looked at it a little closer (lights have been risen already). Other thing i was talking about is the leaves hanging, not really being droopy like theyre too heavy from too much water, but rathermore hanging cause im thinking the lights are too weak (pic 2)

You got an idea how big a yeald can turn out to be with my LED ? Rough number per watts or a rough number per plant:roll:
 

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kmog33

Well-Known Member
Talking about this slight yellowing (pic 1), wich might be a slight burn now that i looked at it a little closer (lights have been risen already). Other thing i was talking about is the leaves hanging, not really being droopy like theyre too heavy from too much water, but rathermore hanging cause im thinking the lights are too weak (pic 2)

You got an idea how big a yeald can turn out to be with my LED ? Rough number per watts or a rough number per plant:roll:
I would ignore that for now and see if it balances out itself. There's not much of an issue there and adding a bunch of shot will most likely just make it worse.

I'd say at best you're pulling a qp off that light, more likely 2-3 oz.
 

Olive Drab Green

Well-Known Member
For a 300w? Took me my 240w and my 500w to pull 3.8 last go-'round, but I also harvested 2 weeks early because I mistook a swarm of springtail larvae for root aphids.
 

DopeD420

Member
Go at least 1.5 feet. You do not want to fry them with the light when you water.
Sooo, I'm back and the plants have been sitting under the leds for their first day and a half and they seem to find a liking towards the change in light. I've added some pictures again, the second and the third one are to show the general plant growth that has been going on so far and the first one depicts a concern im still having with seedling number 1. Althought the plants were all treated equally the first one is showing some weird signs for some reason and im starting to worry about it in all honesty. My general hydroponics 3part series still hasn't arrived and the device i bought for measuring the soil wetness and ph is a total piece of ...so that's a setback but nothing thats going to stand in my way. Im still not sure what the problem is with plant number 1. The leaves are drooping down even tho i gave the plant just as much water as the other two, even tho its a tiny bit bigger. To me is looks like a deficiency of some sort but im not quite sure and would like to fix this problem as soon as possible. If any other pictures in different light need to be provided in order to determin the problem i shall provide these in the next post. Other than that they are looking pretty well in my opinion and i havent had any issues with the other two plants at all.
 

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DopeD420

Member
Sooo, I'm back and the plants have been sitting under the leds for their first day and a half and they seem to find a liking towards the change in light. I've added some pictures again, the second and the third one are to show the general plant growth that has been going on so far and the first one depicts a concern im still having with seedling number 1. Althought the plants were all treated equally the first one is showing some weird signs for some reason and im starting to worry about it in all honesty. My general hydroponics 3part series still hasn't arrived and the device i bought for measuring the soil wetness and ph is a total piece of ...so that's a setback but nothing thats going to stand in my way. Im still not sure what the problem is with plant number 1. The leaves are drooping down even tho i gave the plant just as much water as the other two, even tho its a tiny bit bigger. To me is looks like a deficiency of some sort but im not quite sure and would like to fix this problem as soon as possible. If any other pictures in different light need to be provided in order to determin the problem i shall provide these in the next post. Other than that they are looking pretty well in my opinion and i havent had any issues with the other two plants at all.
Oh and ive transplanted them into 5 litre pots now for veg. After transplanting i gave them roughly a bit more than a litre of water each and wanted to ask if thats enough ? I've heared some people say that roughly 1/4 of the pots capacity wich is 5 litres should be added to the soil in form of water ( so 1.25 litres in this case) will that be enough ?
 
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