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Why do you want to do an NFT system? I only ask because I did one before, a DIY system out of rain gutters. If you're looking to stay with something that size/shape, look into aeroponics. I had problems with my NFT system, once that rockwool cube gets to wet, it falls apart. No don't use neuts...

There are plenty of DIY reflectors easy and cheap you can do. Paint it flat white with Hi-Temp spray paint. I've seen people use cheap aluminum cooking trays that you get at the grocery store. Anything beats nothing. There are 12X24 sheets of pebbled aluminum at Home Depot, with a pair of...

I've heard they are junk but, I don't have one.

Yeah......my old grows were with 2 600 watt lights in an open basement no air cooling needed, just floor fans and 4-5 foot plants in DWC buckets and CO2. It's been a big change for me switching to this cab growing, height, heat, and cramming all the crap into a stealth cab is new to me. Just...

I saw in your gallery, you had a 5'10" plant with that 430 watt light. You have a a lot more cubic feet to heat up then I do. I've got a total of 27-30 inches in grow height by 36 wide and 30 deep. 400 watts cmh with a 4 inch fan and carbon scrubber temps are running High 70's -82 degrees now...

Growing in an attic or top floor? I don't know how big your grow room is but by venting out of the roof, do you have to use odor control? I'm in a cab in a finished basement of a 3 story house......no chance I can tap into something to vent out of my roof. But that's a cool set up to be able to...

That's a great setup....for someone that can/wants to do all of that but, I haven't seen to many others that want to go the extreme of cutting a hole in their roof's to vent heat out. A lot of people's grow rooms or cabinets are in basements. Instead of running a vent up 2 floors and cutting a...

......you stole from your grandmother and your asking for advice on pricing. That's just sad.

If customs gets them, you get the packaging the seedbank sent with a green sticker and a note saying they were confiscated. From what I hear, they don't peruse anything more. If you didn't get anything.....you have no way of telling if you got burned or they were lost or any number of other...

here are some random pics from another site where people are on to CMH growing. These are not my grow, just being honest! This IS MY Dj Short Grape Krush Freak, I used it to test my new ebb&flow set up. It's been in there for a little over a week, before this, it was in my CFL box. I'm growing...

Lumens Lumens Lumens, CMH has less than HPS......but can you get an open reflector HPS or MH light this close to your canopy? It's SPD's that plants use, not Lumens. Plants don't have eyes, they don't care how bright the bulb is. Have you ever seen the lights in a stadium at night, Hundreds of...

Are your prices are in pounds? I got mine for $53 USD and now I'm hearing about $35 at local electrical supply places.

Positive effects on plants, negative on skin from what I have read. UVB light, some growers supplement HPS lighting with it but you have to play around with how how much the plant can handle from direct UVB lighting. CMH puts out less so the plant can take it for th full light on period. Cost 3...

Honestly, it's hard for me to give an opinion right now. I'm growing from seed and I have a CFL cab for seedlings and clones. I didn't get the ebb & Flow cab set up as fast as I had planed so they were under CFL's about a week and half longer then I had planned. At the same time I switched them...

I'm guessing it's the distance from the bulb. After a certain distance, it most likely dissipates. I say this because I'm in shorts a lot, when I'm working on the cab, my hands itch first, most exposure, it takes longer for my legs to start. Before I realized it was the light, I would scratch...

Honestly brother, I hope I see that soon........ Since I've started the thread, I've been labeled as a light bulb salesman and it's been said a number of times that I'm logging in under other user names...... none of which is true. I didn't start the crap, the know it alls with the high post...

You can get them at an electrical supply store, not Home Depot or Lowes. or there are a number of places on line. I didn't know that when I got mine and it may be a couple of bucks cheaper. I ordered mine from Phlips MasterColor Ceramic Metal Halide ~ CMH ~ HPS-Retro White

I am an ass and I haven't asked you to listen to me, I said check out other sites that will back it all up. I don't want you to listen to me, I want you to see there are other options out there. Better options. Love me, Hate me, makes no difference to me, I'll never meet you....but I did give...

.....I also told you in the original post, I'M HERE TO STIR SHIT UP. and I will continue to do so until I'm banned. AND I PLAN ON OPENING A FEW PEOPLE EYES AND GIVING SOME OTHERS INFO THEY WOULD NOT OTHERWISE GET FROM FROM THE KNOW IT ALLS HERE.

Want to see "detailed" grow reports? Venture outside of Rollitup and check any REPUTABLE forum that has more the a few people with high post counts that think they know everything... IC mag, hg420 and so on. CMH lighting is being talked about everywhere. It's time to let go of your security...