Gastanker is mostly right. In my past life, I was in the hydro-shop business and heard and saw every excuse for a plant dying, other than human error. The light bulb killed my plants, the pot killed my plants, the soil killed my plants, the tent killed my plants. Regarding the tent issue, just an FYI, every tent you can buy is made in China, not Germany or France or whatever bs marketing a tent company is using, and they are all using the exact same fabrics. In China there are a few factories that make the tents for every supplier, growlab, secretjardin, htg, hydrofarm, agromax, whatever, go to your local grow shop and look, they are the same thing, just a different design. When tents first became popular a completely different type of fabric was used compared to what is used now. In the "old days" (over 3 years ago), most of the tents were made of a pvc lining attached to a canvas outer fabric, these were the "white interior" tents. There was a "gas off" issue with these tents, especially when they were heated to unreasonable temperatures, and ever since then, anybody who has ever had a problem growing inside a tent has blamed it on the tent. All manufacturers have switched over to the new mylar type of material now, which is a metal coated foil and is a shiny silver and has eliminated the pvc. The only problem you will find with the tents is a temperature related issue. I recall somebody coming into the shop and swearing up and down that it HAD to be the tent (new mylar type) that was killing their plant. We went through everything with the grower, even supplied him with 2 brand new Can Carbon filters to completely remove any supposed toxicity that was coming from the tents, and after a few weeks, he just happens to say "that when temperatures reach 100 degrees in the tent it begins to emit odors and the plants start to die". Well of course the plants are going to die when it is 100 degrees, and the odors were caused by everything getting overheated. So if every tent is made in the same factories, using the same material, and just stamped with a different brand name, how is it that less than 1% of the people ever have problems with them??? Literally thousands of these tents are sold and only a very few people ever have issues with them, unfortunately, many of these 1% are the people who blog about their problems and incorrectly steer people away from otherwise good products, be it tents, soil, nutrients, etc. So if it was truly the tent killing the plants, why isn't every person having the same problems, as the tents are all made from the same fabric, in the same factory?? And just with this post, it is reported that the tent is used for 5 months and then there is a problem--very suspicious. Yes, I see the pics that show when that when the plants are out of the tent, they recover... again, you have allowed them to be at a more reasonable temperature. Yes, the tents are stinky when you first set them up, but that is not a "killer odor", just like you do not die when you are riding in your new car and it has the "new car smell". I wish everyone who has had good experiences with the tents would write on the blogs, as I am sure it would outnumber the bad experiences 100 to 1. So, my final advice, check the temps in your tent!! If you have a "smell" problem, buy a carbon filter....duh.