New Grower First auto led grow questions

[IndianaJones]

Hello all! I'm getting ready to fire my tent back up after being dormant for just over a year now. I have ordered BUDDAH MAGNUM, HEAVYWEIGHT FAST & VAST, and getting DINAFEM SOUR DIESEL freebies. After poking around a bit I've come to find the new craze with these LED lights and I've seen some ASTONISHING results. So, what I'm looking for is advice on how to get my next grow off the ground. Being new to the LED realm I'd love any and all advice. Here's what I'm working with and what I'm interested in doing.

"Flowering Tent"
1. Tent 4'x4'x6'
2. Hydrofarm 6'' 400CFM fan attached to 6'' 650CFM Carbon Filter
3. 5 Gallon DWC system with 4 Buckets (More than likely only going to grow 1 at a time)
4. 600w HPS
5. CO2 bag
6. Flora Nova Nutes

"Veg Tent"
1. Tent 4'x2'x5'
2. 250w CFL

I'm interested in the Mars II series 900w LED grow light. Is this sufficient, or over doing it given the space in my flowering tent?

What are some things to consider when doing a 5 gallon DWC system using an LED?

Are there any methods such as SCROGGING or LST that have worked well with LED, or does one work better than the other?

Lastly, if anyone has a successful grow journal using a similar setup, could someone point me in that direction?

ANY AND ALL advice is cool with me. I've never grown with LED lighting and I've only LST'd one plant so I'm a bit nervous but I'm sure I'll do ok with a little help from friends!

 

[cowboy]

I have a 900w LED in a 3x3. No extraction fan (Humidity) and running about 30 degrees. People are finding you need to run a little higher temps with the leds. As in canopy temp.

2 would be perfect in your flower room. But one is more then enough for a few plants. You really need to get the height and temps right and they seem to flourish. I have a few leds, and notice some differences in spectrum even though they claim similar. The mars II in MY experience has the fullest spectrum. I have the 1200. Its... potent.. lol

 

[cowboy]

I have heard co2 bags just don't bring the ppm up enough... But I am NO expert. Just saw that. Growing one at a time. Good luck ! lol

 

[IndianaJones]

I've used a co2 bag for a couple grows in the past and personally, I thought it helped tremendously. So, for one plant at a time you would say one of the 900w Mars II would be sufficient as long as I can keep the temp optimal at the canopy?

 

[cowboy]

Sufficient..... Yes

 

[flynfish]

hey Indiana, I run a 96x3 top led in a 4x2x5 tent in soil. not done dwc yet. haven't had any deficiencies yet and I am about 2 weeks from being done. I am big on temps an rh so I would suggest getting a therm with a probe so you don't have to open tent a lot. I used ffof and gh flora series this run hope it helps welcome

 

[ThaGreenBandit]

Under LEDs, the autos are gonna be gobbling up the calmag, so make sure you keep an eye out.

 

[IndianaJones]

Looking good flynfish, and thank you for your input. Also, thank you ThaGreenBandit. I've never had to deal with a calmag deficiency. Any leads on good nutes to deal with that if the issue arises?

 

[Trapper]

Yup, with LED's, CaMg is pretty much to be considered a regular maintenance item....like the "apple a day keeps the doctor away" sorta deal.

Seems as though the most popular CaMg supplements are General Organics CaMg+ (NPK - 0-0-0) and Botanicare and Botanicare Plus...
Also some folks using Humboldt Nutrients Equilibrium.

You should be proactively avoiding Calcium and Magnesium deficiencies as opposed to attempting to deal with it after it presents.

 

[blue]

I've got a good post and a 2 suggestions on the back of it I just need to find it in my files and i'll be right back

Well - trapper got in there with the Calmag options that i was gonna offer - but still - you want cal .. or you want mag? Do you know? This will help!

[h=2]

There is no such thing as a "cal-mag" deficiency...[/h] Hey Guys, I took this from another website because i found in interesting and informative. There's some good points in here and i'm often quick to diagnose cal-mag def rather than cal or mag def.


Thread title pretty much says it all. Use the charts in my signature line to help with understanding, but the gist of it is this: Calcium (Ca) and magnesium (Mg) are two different elements required for plant nutrition. One, Ca, is immobile. That means it cannot be translocated (moved) through plant tissues. The other, Mg, is highly mobile in plant tissues.

Understanding this is important on a few levels, including making a proper diagnosis. Because Ca is immobile a deficiency will only occur on the upper, or newer growth. Because Mg is so mobile deficiencies occur on the older, or lower growth.

Their appearances and effects are also very different, and while both elements play together and are required by the plant, they cannot be lumped together as a single deficiency. You can experience both a Ca- and a Mg-, but they are not one and the same thing, not at all.

This is one of the charts posted in my thread, and while it is very good it does have a mistake--calcium is immobile. Keep that in mind.

BOTH Ca and Mg can be delivered into plant tissues via foliar applications to help correct, however, while the Mg- signs prior to actual necrosis can be alleviated and even reversed, the same cannot be said of Ca-.