The first time i germed seeds there was 10 of them in red party beer cups under a 250MH. they did just beautifully. this time i popped 5 Mistys under my aircooled 600watt. they were about 1 foot away from the glass, now they are about 6 inches from the glass. i'll go double check.. but what is wrong with it? i hear people say HID's are bad for seedlings but i mean, they get the sunlight in the wild..
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Whats wrong with germing seeds under 600watts?
- Thread starter Frozenguy
- Start date
Dunno. I've germed seeds under 1kw, only issue was stretching, but that was because I had the light so far away.
I think the problem arises when you germ under fluorescents, and then switch them to HID. They need a bit of an adjustment period in that case, as they're adapted to a lower light level. Kinda like when you come out of a movie theater on a sunny day
I think if they sprout under the HID, they won't have a problem. 'Cept for heat, of course, but I'm assuming you've addressed that.
I think the problem arises when you germ under fluorescents, and then switch them to HID. They need a bit of an adjustment period in that case, as they're adapted to a lower light level. Kinda like when you come out of a movie theater on a sunny day
I think if they sprout under the HID, they won't have a problem. 'Cept for heat, of course, but I'm assuming you've addressed that.
G
Guest
Whats wrong with it????
They are way more likely to dry out and all die.....
Thats enough for me....
They are way more likely to dry out and all die.....
Thats enough for me....
G
Guest
After working sick plants for a long time.....
I saw many seeds die from hids and even cfls....
especially the folks that misted.....
poor plants.....
You are asking if every thing is fine they will be ok...
well yup....
I saw many seeds die from hids and even cfls....
especially the folks that misted.....
poor plants.....
You are asking if every thing is fine they will be ok...
well yup....
Yeah, now I can see the death by misting - ya just can't apply liquids to the foliage of plant under intense light. It's bad enough on large plants with plenty of leaves, can't imagine what it'd do to poor little seedlings with only three or four leaves. If it's only got coyts, then hell, ya might as well just crush 'em under your foot
G
Guest
The problem was that when the plants needed water they were misted which wets the surface only....
But if there a problem with terminology here....
I dont use any light for germination.... which I think ends when they break the surface....
Thats when I put them under light...
I use no light until they come up.... then they are vegging....
But if there a problem with terminology here....
I dont use any light for germination.... which I think ends when they break the surface....
Thats when I put them under light...
I use no light until they come up.... then they are vegging....
Turn a fan on them. If a gentle breeze is blowing on them then they should be OK even if they get wet.
I thought young seedlings wanted a warm moist environment.
I'm in the same situation watching them. I've got a few small flouros adjacent to them and a 250 MH about 3 feet above them on for 16 hours a day. A very small fan is blowing on them and I've been watering with luke warm water every other day.
Yes, it's a critical time but that's all I know how to do! Any suggestions or comments to improve are always greatly appreciated. I'm at day 2 of veg (seedlings popped out of the soil surface yesterday).
I thought young seedlings wanted a warm moist environment.
I'm in the same situation watching them. I've got a few small flouros adjacent to them and a 250 MH about 3 feet above them on for 16 hours a day. A very small fan is blowing on them and I've been watering with luke warm water every other day.
Yes, it's a critical time but that's all I know how to do! Any suggestions or comments to improve are always greatly appreciated. I'm at day 2 of veg (seedlings popped out of the soil surface yesterday).
yeah i have an osc fan on them. they blow in the breeze, one of them sways like a cm. but they havn't needed support yet.. temp is high 70's low 80's.. cant really tell. cause the "IN" temp is 76 and the "OUT" temp (probe on top of cup surface) says 84. so i assume air temp/light temp is fine.. my RH is about 25-35% though.. can i just leave a bucket of water in the room to raise it a couple points?
G
Guest
No offense but... why in the HELL would you start plants under a 1000? The more you have to move the light away from the plant, the more you'll be paying an ass of electricity for what I simple 4 ft. florescent could do by itself, at least for the first two weeks.
1. It drys out soild faster, even if cooled the air is still dry, the heat fries it up then it gets sucked away.
2. Seedlings and heat stress= dead plant or weak roots
3. Your spending money you don't have to.
4. Yes seedlings can do well under the sun, but so what? Are you really going to compare your little "ventalated" HPS, ferted, closet/cab grow to mother nature? There are to many variations to compare to nature. Comparing just the light source doesn't make a valid argument IMO.
I don't think the question is can it be done, of course it could, but it's just not efficiant.
1. It drys out soild faster, even if cooled the air is still dry, the heat fries it up then it gets sucked away.
2. Seedlings and heat stress= dead plant or weak roots
3. Your spending money you don't have to.
4. Yes seedlings can do well under the sun, but so what? Are you really going to compare your little "ventalated" HPS, ferted, closet/cab grow to mother nature? There are to many variations to compare to nature. Comparing just the light source doesn't make a valid argument IMO.
I don't think the question is can it be done, of course it could, but it's just not efficiant.
Me$$iah said:
well good thing i have no heat stress then. and i thought that weed grows faster/better under more intense light. it was my understanding that weed is a light hungry plant. and dont call my room a little closet grow.
a flourescent doesn't do what a 600watt does..
and i'm not trying to compare my grow to mother nature lol.. just made a point saying that seeds can do it outside, so we can inside.. i was just curious to see what people said cause i hear a lot of people saying actual negative things about using hids while growing seedlings..
Believe he's talking to me.
The seeds were started under a 1k specifically to see the effects. They were also 12/12 straight from seed. It was done to make a point about all the fancy techniques not being necessary.
Nice to see that you agree about the primary source of complications being heat though M.
BTW, saying 'no offense' doesn't give you a blank check to be condescending and pedantic.
No offense intended, of course :wink:
The seeds were started under a 1k specifically to see the effects. They were also 12/12 straight from seed. It was done to make a point about all the fancy techniques not being necessary.
Nice to see that you agree about the primary source of complications being heat though M.
BTW, saying 'no offense' doesn't give you a blank check to be condescending and pedantic.
No offense intended, of course :wink:
I have no choice but to turn on my 250MH in my grow. It's friggin cold outside! Sure, my little space heater could probably handle it but what I did for the first day was to place a small tent over the plants to shade them from the 250 and let the flouros give them light. I removed the tent today so the lights shining on them now. I will check them every 12 hours or so. Humidity is pretty good, holding at about 50%. I can easily raise it with water in trays on the floor.
Seedlings are picky and finicky. Too much light...bad....too much water...bad...too much heat....bad....too much cold....bad.....no nutes allowed too!
Seedlings are picky and finicky. Too much light...bad....too much water...bad...too much heat....bad....too much cold....bad.....no nutes allowed too!
SweetIndica
Member
To whoever made the comment about plants being started under a 1000w. I have done it several times, and just did it to my current grow. The only downside i noticed compared to fluros is the use of power, but a few weeks of power saved isn't enough for me to worry about. I also noticed more vigor under the HPS compared to the 1000w, my ladies love the light. Not to mention, the HPS's heat works to my advantage. At the moment, it's so cold in my growroom at night that i don't need to use the fan when the lights on. Even with my 1000w hps on at night, it doesn't go much above 75 in growroom which is perfect. The 1000w also is much more capable of starting multiple plants. I just started 16 plants, and it would take quite a bit of fluro's to cover that many plants. the 1000w is even capable of starting 20-25+ plants, it would take 15+ cfl's to cover that many plants.
G
Guest
Frozenguy said:
I don't know about your set up and I thought I was obviously just using "closet" grow as general label for whatever you got going. I guess I should have been more clear.
Yes MJ does well with a lot of light. But again, it is not efficient to put seedlings under a 1k. Soon as they sprout take a few stick them under the 1k, take the others and stick them 3 inches away from a flo for the first two weeks. I guarantee the difference will be very small and insignificant.
The seedlings are not mature enough to handle/use that amount of light that quickly. That is why you find yourself raising the light to insane heights. The plant does not need all that light in these early stages. I was simply stating that more than anything starting seedlings under a 1k was unnecessary and more costly.
NiteTiger said:
I must have looked past this, but then I guess it would make sense
NiteTiger said:
I say no offense because I cannot find other words to say. The only words I use might seem harmful in the wrong context... which was the general feeling I had about my post as I re-read it. By saying no offense, anything you read that may seem 'condescending' really isn't, I just don't have the proper words at the moment to have it sound otherwise.
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G
Guest
There's no way you're going to get the results you would from a 4 ft 2 lamp shoplight with the lamps 1/2 inch above the tops,it doesnt matter how cool they run either.Nothing particularly wrong with it except its a waste of electricity and you'd get better results with a shoplight
SweetIndica
Member
Me$$iah said:I don't know about your set up and I thought I was obviously just using "closet" grow as general label for whatever you got going. I guess I should have been more clear.
Yes MJ does well with a lot of light. But again, it is not efficient to put seedlings under a 1k. Soon as they sprout take a few stick them under the 1k, take the others and stick them 3 inches away from a flo for the first two weeks. I guarantee the difference will be very small and insignificant.
The seedlings are not mature enough to handle/use that amount of light that quickly. That is why you find yourself raising the light to insane heights. The plant does not need all that light in these early stages. I was simply stating that more than anything starting seedlings under a 1k was unnecessary and more costly.
I must have looked past this, but then I guess it would make sense
I say no offense because I cannot find other words to say. The only words I use might seem harmful in the wrong context... which was the general feeling I had about my post as I re-read it. By saying no offense, anything you read that may seem 'condescending' really isn't, I just don't have the proper words at the moment to have it sound otherwise.
Ok? And i could argue the point that the power used in those 2 weeks from the 1000w would be insignificant also. Yes, 1000w's do use up alot of electricity. But 2 weeks of using it for me would be around $12. Also Please find me a fluro that can properly light a 5x5 area. I've seen people start over 40 plants under a 1000w, can't come close to that with a fluro...even with a t5 i don't think they make any strong enough to do that.
