There is a lot of mis-information on the web. Beware newbies.

Look what I just found on a recent thread about lighting

"Think of the sun the reason your using MH is to simulate early summer high sun long days and bluer color temperature of the sun.

When we switch to HPS we are simulating the lateel summer shorter days ( oh shit I better produce from the plants side) and so by placing a youngster into HPS that is like a late summer sun with an early summer timefram"

So...... is he trying to say the sun changes spectrums??? Can't help but laugh.

the sun dosent change spectrums but the angle it comes through the ozone changes the color temprature of the sun. you have never noticed that in midsummer when the days are longest the light we recieve is more of a white/blue and in the fall when the days are shorter the light is a darker reddish color?

either way both lamps will grow it but if you want to simulate mother nature than you use different color temps in different stages of growth.

i may not be 100% correct here....

You are correct about the angle thing. But the angle the sun hits the planet determs the time of light hitting the planet. The amount of light we receive determines seasons.

Now I'm not saying that blue light isn't better for a plant in veg, cuz it is. Plants use more of the blue spectrum in flower the same way it uses more nitrogen in veg. Just like the plants use more of the red spectrum in flower.

But since we grow inside we try and give our girls the best possible life, down to the amount of co2 is in the air. Most of us use a mh or blue spectrum t5s in veg and a hps for flower. But you can due either with both. I'd rather flower with a 1000a mh then 2700k CFLs

yeah i dont know everything about light spectrums, i usually use a 400w MH to veg but my bulb recently blew so now im using an array of 2700k and 6500k CFL's to veg with because thats what i had available to me. I have flowered out using my 400w MH because my ballast shit the bed and wouldnt fire any HPS bulbs and i couldnt afford a new one.

so yeah you can indeed flower/veg with the "not recomended" lighting and both actually have some benifits, MH will increase resin production in flower and i believe HPS will give you a more bushy plant in Veg but the lighting thing goes with the 4 basic elements a plant needs and perfecting them. so if you can use the correct spectrum then you should, if you can use a mixed spectrum in all stages thats what i would recomend. but if you have a basic setup with a digital ballast and a MH and HPS bulb you should use the MH for veg as plants grow much faster under them and HPS for flower as it will significantly increase your yeild.


the biggest issue is the guy who dosent know his ass from his elbow and a newbie posting a toxicity problem and they scream CaMg deficient or some kind of deficiency and then the poor guys goes ahead and adds more shit to his plants and further worsens his problem...

when dealing with plant problems that are either a toxicity or deficiency the first thing before accepting any diagnosis is to PH you medium, make sure thats where it needs to be. if it is where it needs to be you can almost rule out deficiency as most bottled fertilizers have micro/macro nutrients in them and most come with CaMg.

if the PH is off then fix it and wait to see if new growth improves, if it does you found your issue, if things continue to get worse your probabally looking at some form of toxicity, flush plant and wait.

too many people are quick to jump to a diagnosis when they have no information to base thier diagnosis on and are simply going by what the picture looks like. unfortunatly alot of toxicities and deficiencies can look similar to other problems.

and i have watched people tell new growers to tear out all the tin foil in thier little grow room when it is completly un neccesary. tin foil is actually better than nothing and the real reason its not recomended is due to costs more than it burning plants, a small can of whit epaint will cover more area and be more cost effective than the foil.

but for alot of new growers they dont have the $$ to go out and buy a bunch of shit so they have some foil lying around they use it....nothing wrong with it and by having them tear it out is just hurting them finacially more than helping them. people decide to start growing because they are struggling finacially and want to grow thier own herb instead of continuing to pay for it at street prices which can be anywhere from 12-50 bucks an 1/8 ounce of herb. they arent looking to grow cannabis cup bud just some decent smoking herbs to keep them from having to buy it. so advising them that what they have to use is "bad" for thier plants is not helping them. people need to understand that not everyone has limitless sources and can just go get whatever the "best of the best" equipment is. i just built a 4x6 grow room total cost was around 350 bucks and that includes a 1000w light kit....

ok anyways im just rambling, i guess my point is people need to take the time to try and understand other peoples situation and not look at what is the best but what is best for the individual they are trying to help.

Travis9226 said:

Look what I just found on a recent thread about lighting

"Think of the sun the reason your using MH is to simulate early summer high sun long days and bluer color temperature of the sun.

When we switch to HPS we are simulating the lateel summer shorter days ( oh shit I better produce from the plants side) and so by placing a youngster into HPS that is like a late summer sun with an early summer timefram"

So...... is he trying to say the sun changes spectrums??? Can't help but laugh.

Click to expand...

One shouldn't laugh dude, especially when you person doesn't really understand what you are talking about.

Not to be too much of a dick, but I am kind of laughing at your understanding of the sun and its solar system. No, the light energy that leaves the sun doesn't change spectrum, but I am quite certain that is not what you are referring to. The light that reaches the earth ABSOLUTELY changes spectrum. Both through the course of the day and throughout the year.

If you would like to know the REAL cause for the change of the seasons, its actually the TILT of the earth in its relation to the sun. The seasons don't change because of our distance to the sun, that is a very very small factor. Every wonder why its summer in the northern hemisphere and winter in the southern? It ain't because of the earths distance to the sun.

Anywho, light passing through more layers of atmosphere.. in the fall and winter, causes a shift in light to the more red spectrums as more blue light is refracted and scattered off of ozone, water vapor and pollution.

Funny how this thread was about bullshit found on the internet... and guess what, the thread fills up with BS. LMAO. classic.

RetiredMatthebrute said:

there are a few things though that are true

conditions....optimum humidity and tempratures will be your best friend
Light.....the canabis plant loves light, the more the better as long as your not burning your plants.
Nutrients....Nitrogen is nitrogen it dosent matter where you get it but plants do need it same goes for Phosphorus and Potash and other micro nutrients.
PH...is important if your soil PH is way out of wack it will effect your plants......if its .2 off from "ideal PH" then they are fine....if it is 2 off then you need to fix.

if your lights go out during veg and your plant gets a couple extra hours of light its no big deal really, plants take almost 7 days of consistant light cycle to change the hormones in the plant to either go into flower or back into veg, same goes for a plant that 6 weeks into flower. if your lights get stuck on for a 24 hour period before you realize whats going on trust me your not going to go into your grow room the next day and find your plants look like they did 8 weeks ago. it will take a plant in full flowering stage 2-5 WEEKS to revert itself fully back to a vegatative stage......

the original poster is 100% right there is so many dumb ass stoner THEORIES out there that people will blast new people with but the bottom line is its a fucking plant and it will grow as long as it has food, water and light. the key to growing a really good plant is not all this mumbo jumbo horseshit stoned potheads come up with its tuning in on the 4 basic necesities of the plant and perfecting them food, water, light and temprature get those 4 things right and you will grow some great weed.

Click to expand...

I'm a newbie and those 4 words "food, water, light, temperature" are all i'm going to concentrate on! Goodbye to the bollox and bullshit.

Thank you brother, you've saved me from a whole lotta brain ache!

Rickreefer said:

I'm a newbie and those 4 words "food, water, light, temperature" are all i'm going to concentrate on! Goodbye to the bollox and bullshit.

Thank you brother, you've saved me from a whole lotta brain ache!

Click to expand...

haha thanks man hope all works out for you. feel free to PM me if you have any issues i may or may not be able to help..

RetiredMatthebrute said:

the sun dosent change spectrums but the angle it comes through the ozone changes the color temprature of the sun.

i may not be 100% correct here....

Click to expand...

^^ not sure if this is what your talking about

the funny part is when you show someone that there advise is wrong and they won't admit it, then after being made to look like an ass, they start "liking" posts of other people who spout more misinformation.

me? call me out on anything im wrong on man

RetiredMatthebrute said:

me? call me out on anything im wrong on man

Click to expand...

no, wasn't referring to you.

There is a PDF on the Internet put out by current culture that pretty much sums up all the climate and nutrient shit in one excellent graph I'll look for it later and try to post it.

There really is no secret sauce or mystical method that blows everything out of the water in terms of quality and yield
Nice healthy plants on a balanced diet in phase appropriate climate will win out over stressed plants that your trying to "fool" or "boost"
Trust me on this one

KISS

10 char

legallyflying said:

One shouldn't laugh dude, especially when you person doesn't really understand what you are talking about.

Not to be too much of a dick, but I am kind of laughing at your understanding of the sun and its solar system. No, the light energy that leaves the sun doesn't change spectrum, but I am quite certain that is not what you are referring to. The light that reaches the earth ABSOLUTELY changes spectrum. Both through the course of the day and throughout the year.

If you would like to know the REAL cause for the change of the seasons, its actually the TILT of the earth in its relation to the sun. The seasons don't change because of our distance to the sun, that is a very very small factor. Every wonder why its summer in the northern hemisphere and winter in the southern? It ain't because of the earths distance to the sun.

Anywho, light passing through more layers of atmosphere.. in the fall and winter, causes a shift in light to the more red spectrums as more blue light is refracted and scattered off of ozone, water vapor and pollution.

Funny how this thread was about bullshit found on the internet... and guess what, the thread fills up with BS. LMAO. classic.

Click to expand...

I don't ever remember saying anything about what changes the seasons. I know its the tilt of the earth on its axis.

IF the spectrum of light changes dramaticly enough from spring to fall from the amount of atmosphere it goes through I would like to see some kind of supporting evidence to that effect. And if that was the case wouldn't only see blue rainbows in the spring and red rainbows in the fall???

And if the original statement that I posted wasn't something to laugh at then we could just veg under a mh and when it was time to flower we could just put in a hps and start flowering. LOL because flower has little to do with the amount of time a plant sees light and more to do with the spectrum.

I do know that plants receive more hours of light in the spring then it does in the fall, also due to the TILT of the earth.

I'm by no means trying to be an ass here I'm just one for a good debate and not trying feed new growers bad information. Peace out girl scouts

Just google it dude.

giggles26 said:

Oh and your right man just cuz someone has a million posts and 2 million rep points doesn't mean he is the god father of ganja growing.

I'm not saying that some of them don't know there at some point and time it becomes more of a pissing contest rather than helping the newbies. shit butWe have all been there at one point and time and it's not fair to them to feed them with bs just because you are top dog of rep points.

But some people wont even bother listening to the advice you give and then come back 4 days later saying wth is wrong with my plant!

Click to expand...