First grow advice please

[holymoly2012]

home made diy box grow. 4" rvk with carbon filter pumping into outside room next to cool tube intake. 6" TT extractor pumping air from cooltube through exterior wall vent. 400W HPS. Not loads of space but enough for a few plants. Currently have

1 small white rhino.
1 small grapefruit
1 larger Big bang auto
1 smaller big bang auto

all fem. any advice or improvements please?

Gallery to pics

Postimage.org / gallery - Big bang 1, IMG 1332, IMG 1335 (http://postimage.org/gallery/a87ug9io/)

[sativaforever]

you should only grow one plant under 400 watts. it will maximize your yield, if you do it right. 400 watts is best for a one plant scrog grow in a small space. good luck! remember, less is almost always more.

[holymoly2012]

Ok. What exactly I's scrog? And how does it work?

[sativaforever]

if your starting from seed, veg plant for 4 weeks. at 4 weeks cut the top node off of your plant. then cut off all but the nicest 4 or 5 bud sites(these are the branches that grow off the main stalk, above the fan leaf at the node. veg for two more weeks. at this point you should have a nice bush with an even canopy. now cut back all vegatative growth including bud sites from the bottom quarter of the plant. now take each stalk coming from the main stalk between your fingers, right where you stopped trimming back growth, and pinch it untill the stem is soft enough to bend over to a ninety degree angle minimum. bend the stalks in a manner so that each top occupies its own equal space away from the center of the plant. now you should be able to lower your light back down a bit, and you should. now flip timer to 12/12 for 4 weeks then 10/14 for 2-4 weeks depending on strain. if you follow these steps from seed to finish in a five gallon bucket, and feed the plant properly along the way, that plant will be beautiful and produce a minimum of four ounces. i get 6-8 ounces routinely off good strains and sometimes up to 12 on one plant. if you have any questions i would be glad to answer.peace

[holymoly2012]

That's fantastic.! I will 100% do this on my next grow!!! It would be a shame to waste what's already on the go!!! :(

[sativaforever]

the next step is get a ph kit with up and down. make sure you ph any water or nutrient solution you use. when your only growing one plant, you have to make sure you do it right. good luck!

[holymoly2012]

I've got a full soil testing kit and a ph pen for the nutes. I don't have a up and down kit yet though. The mixes I use are always at ph6.5. I use bottled drinking water. Get it from local store 5l for £1.00. I've started spraying foliage with mist in mornings to make it more like natural habitat and help remove toxins from te leaves. Sound alright?

[M3thnitup]

I wouldn't spray your plants because they might burn up from it

[sativaforever]

i have misted my plants every morning under 1000 watts for the last fifteen years and never had one burned leaf. please do not offer information that is at best hear say. if you had actually misted your plants under light you would find out that what your saying is crap. people are on this forum to learn how to grow. if you have no valid info to offer, then dont respond, please! think about how much stronger the suns light intensity is compared to your grow lamp. there is no comparison. do you see plants burning up in the sun every morning when they are covered with dew? i dont think so. a more complicated explanation is how a water droplet refracts light. its not a magnifying glass. it does not focus light to a single point. sounds like your doing the right things with your ph. be sure to test the ph of your water after you have added nutrients. if your water ph is 6.5-7.0, its likely that when you add nutes to the water your ph will drop to around 4.0-4.5. most nutrients are on the acidic side. peace and good growing:pimp::rastasmoke:

[holymoly2012]

Does this mean I need to collect some runoff and test it? Am I right in saying I need to adjust my feeding water to accommodate the adjustment that is made by the plants and alter it accordingly? Satvia your advice is second to none. Thankyou. I'm misting and no problems at all. Leaves are still yellow under the top canopy though :/

[pushit]

i have misted my plants every morning under 1000 watts for the last fifteen years and never had one burned leaf. please do not offer information that is at best hear say. if you had actually misted your plants under light you would find out that what your saying is crap. people are on this forum to learn how to grow. if you have no valid info to offer, then dont respond, please! think about how much stronger the suns light intensity is compared to your grow lamp. there is no comparison. do you see plants burning up in the sun every morning when they are covered with dew? i dont think so. a more complicated explanation is how a water droplet refracts light. its not a magnifying glass. it does not focus light to a single point. sounds like your doing the right things with your ph. be sure to test the ph of your water after you have added nutrients. if your water ph is 6.5-7.0, its likely that when you add nutes to the water your ph will drop to around 4.0-4.5. most nutrients are on the acidic side. peace and good growing:pimp::rastasmoke:

Heres a little something I found for ya. I would share the link but the mods will just delete it. It's really not about misting the plants it more of when the best time to do it. Will it burn your plants? Maybe. Is there a chance? Yes.

Scientists have finally confirmed what gardeners have long claimed: Water droplets can burn certain plants at the wrong time of day

It's part of the entrenched mythology of the gardening world: if you water your plants in the hot midday sun, the droplets can act as a magnifying glass and burn the leaves. But until now, science had been unable to confirm the folklore as fact.





"The problem of light focusing by water droplets adhered to plants has never been thoroughly investigated, neither theoretically, nor experimentally", said Dr. Gabor Horvath of Hungary's Eotvos University.

Determined to discover the truth, Horvath and his team of researchers conducted a series of computer and experimental studies (http://www.physorg.com/news182396894.html) on the problem, with surprising results. The studies confirmed that plants can be sunburnt from water droplets â?? and people can too.

The connection lies in the types of plants most susceptible to getting burned. It turns out that water droplets on a smooth surface, such as maple or ginkgo leaves, cannot cause leaf burn. But plants with hairy leaves, such as the small wax hairs of floating ferns, tend to hold water droplets in focus above the leaf surface, magnifying the sunlight. The same principle holds true for water held above hairy human skin after bathing.

Researchers also considered if the same process could potentially start a fire if the light-focusing occurred over dried-out vegetation, but their results were mixed. While fires are theoretically possible, there are some natural factors that make them less likely.

"The likelihood [of a fire starting] is reduced as the water drops should evaporate before this, so these claims should be treated with a grain of salt," concluded Horvath.

Nevertheless, the study was clear about what gardeners and poolside loungers have long known. During times when the sun is most intense, it would be wise to keep yourself and your plants dry.

Sorry for the thread jack

[Weezard]

Good post, Push.
And Sativaforever knows what he's talking about.
A 1K HPS at the proper height will do little harm.
The same goes for morning, and evening sunlight.

At mid day, it is possible to to create tiny sunbleached dots with large water globs resting on the cystoliths and trichs.
This I have seen.

They are of little consequence.

So, mist if you must, just don't overdo when the RH is high.
And only at lights on.
Slowed evaporation invites mildew and mold, yah?

Aloha,
Weezard

[captaincrunch]

can you scroq? if starting with clones ?