400w Metal Halide for first month of flowering?

[Earthy Dank]

Okay, right now i have a 600w HPS which covers a 3 x 3 area. I figure i can fit 6 comfortably. I was wondering... could i double what im doing by getting a 400w metal halide for the first 4 months of flowering then switch to the 600w hps for the the main budding phase. Someone was telling me that plants grow denser with sturdier stems under MH light, and since the first 3 -4 weeks is stretching could MH light help control stretch? Could a 400w MH keep up with 6 medium sized plants for a month in flowering?

Earthy Dank Reviewed by Earthy Dank on 11-27-2007. 400w Metal Halide for first month of flowering? Okay, right now i have a 600w HPS which covers a 3 x 3 area. I figure i can fit 6 comfortably. I was wondering... could i double what im doing by getting a 400w metal halide for the first 4 months of flowering then switch to the 600w hps for the the main budding phase. Someone was telling me that plants grow denser with sturdier stems under MH light, and since the first 3 -4 weeks is stretching could MH light help control stretch? Could a 400w MH keep up with 6 medium sized plants for a month Rating: 5

[PharmaCan]

I've got six mothers under a 400w MH and I wouldn't want to do it. The light doesn't penetrate to the lower branches well enough. In any event, your thinking is upside down. The blue light from the MH promotes vegetative growth, it doesn't inhibit it.

PC :smokin:

[OLDJIMMYBONES]

i use a mh for the veg, and switch to a hps for whole flowering

[GaGrown]

Use the Hps from start to finish. If you wanted you could just add the 400 MH to the scheme of things.If you took them out from under a 600 and replaced the lamp with a 400 at the same height.You will for sure have stretching.What controls stretching is how close you are able to get your lamp to the tops of the plants.The strain has alot to do with stretch,too.Hope this helped ya some!

Ga Grown!

[Earthy Dank]

So a 400w HPS couldn't keep up either? They would be right next to each other so they would share light.... I guess ill have to buy another 600w HPS if im gonna double what im doin... Hey georgia which hydro store do you use? Atlantis?

"The blue light from the MH promotes vegetative growth, it doesn't inhibit it."
I've noticed that MH make veggetataive plants more compact and tighter internodes. I was wondering, since the first couple weeks of flowering are a vegataive stretch would it help them grow compact and tight internodes.

[PharmaCan]

Maybe I didn't understand your question quite right. What light(s) do you have right now?

PC :smokin:

[GaGrown]

So a 400w HPS couldn't keep up either? They would be right next to each other so they would share light.... I guess ill have to buy another 600w HPS if im gonna double what im doin... Hey georgia which hydro store do you use? Atlantis?

"The blue light from the MH promotes vegetative growth, it doesn't inhibit it."
I've noticed that MH make veggetataive plants more compact and tighter internodes. I was wondering, since the first couple weeks of flowering are a vegataive stretch would it help them grow compact and tight internodes.

Just try ebay.I saw a killer Future-Brite 600.They run almost 325.00 new. I got 4. I don't see why the 600 and 400 would not be enough? You could really boost your efforts if you were to try a light mover,and the 600 watter.It would even the light out.

Ga Grown!

[growbe]

If you have the means to use a mh then use it during the stretch or just until you see buds start to form. MH bulbs will help decrease the stretch. Now, some strains will stretch more then others, and sometimes a grower will want the plant to stretch normally. This is up to you and your grow space/style.
Light movers are awesome, but in a 3x3 area I don't see the benefit.

[Skrappie]

I've done a lot of reading about this on ICmag, and plan to do it for my flowering plants.
Flowering with a MH will promote denser buds, because of node spacing, it also helps control stretch. so you are right on track Earthly.

There are people who do entire grows under MH and have excellent results.

[Earthy Dank]

Which would be better a 600w HPs on a light mover or a 600w mh and 600w HPS (disregarding price).