fluorescent light for day and black light for night

could you use a black light after using your regular light? like if you had your regular light on the plants for 16 hours and then for the next 8 hours put on the black light. It would be like giving your plant not too less light but also not too much light. any answers?
what do you think?

sounds like a waster of electricity to me , your plants need complete darkness to work on there roots "so ive heard" just keep your lights on 18'on 6 off

Why would you put a black light on the plants?

yeah i was just wondering because you can give them to light and make the stalks grow faster than the leave but also give them to much light and burn them and i was thinking that a black light doesn't give of as much light but it still dose give off a little so it would be darker for the roots but you would still kinda have a light on them 24 hours cause i have herd that you can give your plants 24 hours of light til flowering.
what do you think?

the black light wont do anything...if anything it will be bad for your plants...

The blak light does nothing

And you are not going to light burn a plant with flouros either bro. I would suggest clicking the growFAQ button and reading as much as you possibly can

marijuana mark said:

could you use a black light after using your regular light? like if you had your regular light on the plants for 16 hours and then for the next 8 hours put on the black light. It would be like giving your plant not too less light but also not too much light. any answers?
what do you think?

Click to expand...

bad idea, if it worked it would have already been done. Stick with the tried and true!

the only break from light your plants needs is darkness 6 or 12

yeah i was just thinking of the possibility's but thanks for the advise

Why did you make two threads asking the same stupid question?

well i went on the newbie general growing but then i saw the indoor growing with light so i just put two up

the question was asked 2 for clearty
hay dude i understand when you have an idea that you think should work so you come on hear and ask it and people attack you
look my dude the only way to know is to grow
try it and document your findings and post them
if you feel it may work try it. a lot of guys on here only no one way. to them the planet is flat this was the best comment given to me so ill give it to you let me know what happens
i have an idea that i am work ing on and i put it on here and everybody knocked it gut we will see
check out my idea and till me what you think heres the link (https://www.rollitup.org/indoor-growing/207516-lights-lights.html)

black light are mostly uv wave lenth which is out side the range of photo. for plants but i am not sure 100%
but keep coming up with those ideas and try them out dude check out my bright idea give feed back

That 5hit said:

the question was asked 2 for clearty
hay dude i understand when you have an idea that you think should work so you come on hear and ask it and people attack you
look my dude the only way to know is to grow
try it and document your findings and post them
if you feel it may work try it. a lot of guys on here only no one way. to them the planet is flat this was the best comment given to me so ill give it to you let me know what happens
i have an idea that i am work ing on and i put it on here and everybody knocked it gut we will see
check out my idea and till me what you think heres the link (https://www.rollitup.org/indoor-growing/207516-lights-lights.html)

black light are mostly uv wave lenth which is out side the range of photo. for plants but i am not sure 100%
but keep coming up with those ideas and try them out dude check out my bright idea give feed back

Click to expand...

We told him the truth you cannot grow with blacklights. Please read the growFAQ before leading people in the wrong direction. https://www.rollitup.org/view.php?pg=faq&cmd=article&id=26

the kid is already banned... no use for this thread anymore.

tom__420 said:

Why did you make two threads asking the same stupid question?

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Why as a vet of the site would you attack an obvious noobie ( I am too, it's not a slam from me) with a question about something?

I do agree with Tom, if you read more you would understand that black light emits UV light.. not good for plants either by the way, so don't use them.
You can do a search on black light here, or on google, and you will see what everone's talking about.

and this is how myths are spread....."so ive heard" plants do not need a night cycle to grow roots, they dont need a night cycle at all for vegging, however you can save a considerable ammount of electricity by doing an 18/6 light cycle for veg, plus if your in a hot climate you can eliminate the need for ac if you leave the lights off durring the hottest part of the day, also if you grow feminised seeds you can cut down on the possibility of them going hermie by using 18/6 because the plants wont be pushed so hard there by cutting down stress, that tidbit i read on the dutch passion site and from my current grow it seems to work so far, but back to the question, toss the black light out, it has no effect on the plants

marijuana mark said:

well i went on the newbie general growing but then i saw the indoor growing with light so i just put two up

Click to expand...

That 5hit is right. The black light puts out light that is not used by the plant, it will not help you. I know you can enter a grow room in the dark with I believe it is green light (produced by LEDs so not to affect the plants) although I still wouldn't. This would fall into the same catagory. It may have an extremelly small amount of usable light, but you're just wasting money. The black light does actually put out a lot of light, the same as an equivalent bulb in the non black light catagory, eg a 4 foot black light tuble would put out a similar amount of light to a 4 foot florecent cool white bulb. The difference is we can see the light of the cool white, the black light is invisible to us. To see what I mean put a bunch of neon coloured stuff in a room turn off the lights and turn on the black light you'll see it light up. If the black light did not put out a lot of light those things would not light up.

The lights that are to strong that you are thinking of are lights light the HPS lights. That is when the plants are young and can be burnt by to much light. If you are worried about that, use T5 high out put lights or florecents or cfls. I use all T5HO from sunblaster and they are great and have never burned a plant yet. I have an 18" aquarium bulb that I stick in my garden as well. that I had and hate to see lights laying around. Although it's not that great, every little bit of light helps. You need to understand light spectrum. There is a good easy to read and understand book called "How to Super Charge Your Garden" if you can get a copy and read it that would really help you understand what your plants need. I read the light spectrum for my aquarium bulb and although it does not have a high lumens output, the spectrum spikes where the plants need it, so I keep it sitting at the bottom of my plants to supplement the lighting. Do some reading if you can about light spectrums and plants then let your ideas flow.

Good luck.

fat sam said:

and this is how myths are spread....."so ive heard" plants do not need a night cycle to grow roots, they dont need a night cycle at all for vegging, however you can save a considerable ammount of electricity by doing an 18/6 light cycle for veg, plus if your in a hot climate you can eliminate the need for ac if you leave the lights off durring the hottest part of the day, also if you grow feminised seeds you can cut down on the possibility of them going hermie by using 18/6 because the plants wont be pushed so hard there by cutting down stress, that tidbit i read on the dutch passion site and from my current grow it seems to work so far, but back to the question, toss the black light out, it has no effect on the plants

Click to expand...

Roots do develop more in the night cycle. The plants store energy during the day and at night they focus on the roots. Not to say you can't run a 24/0 light cycle, and I totally agree on the energy savings, but it is a fact that during the nights plants develop focus on root development. You are right they do also develop during the day. All I'm saying is you get a stronger root system by giving the plant rest and letting it spend more time on roots.

no i am not saying it will work
just saying that you have to sometimes shoot your friend to know the gun is loaded
this noob was trying to understand 24 hr lighting and at the sametime tring to find a way too create root growth kind of a way to have light in the dark we all, even him, know that plants cant use black light
but know one has ever tried it because anytime someone ask can you someone shoots them down
the only ture way to know is to try and grow
i for one do not think it will have any benifit to the plant
but i would have said that about many of the thing we do know in indoor grows

.................................................+rep