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Think of this as a challenge, i have experimented with most methods of growing but i want to get other peoples opinions on what is the best method for the following. You have a 120cm x 120cm (roughly 3' x 3') grow area, 600watts of light or equivalent in whatever type (HPS, LED etc). You have...

I know right!! :) Some grow tents specifically PVC ones had an issue where they expelled a gas when heated killing sensitive plants, cannabis is as it happens sensitive to that said gas. There are other plastics that potentially cause this issue, google it there is lots of info about it.

Haha, sorry to bother you bro, forgot i had this site at all and literally came across this. I hate unfulfilled mysteries so thought i'd put a conclusion to it! What you growing in now??

Sorry to open this thread again after 4 years! I haven't been around for so long but am back now and wanted to draw a line under this thread. It turned out all my plants were dying form offgassing or outgassing, many happy crops since discovering this....

Hello mate Happy New yaer etc.. Well all the new growth on the plants turned yellow, then started drying up!! I pulled the plug on them. I have a new lot now and they look OK, only 3" high at the moment but they seem ok. I think maybe i had a curse put on me or something because never have i...

I have repotted into other compost and will hope they green up. Thanks as always for your advice mate, it is a bit of a nightmare though!! Will keep you in touch DB

Ok PH just uder 7 Soil? Not sure, grow bag compost? (think must be the culprit Lights are 3' above plants 600w sonT romm 25 degrees humidity between 50 - 70% Have changed soil again to a multi purpose seed soil. I have always grown the same way and have never had these problems, If i...

aaaaaarrrrrrrrgggggggggghhhhhhhhhh!!!!!!!! After getting a nice bit of foilage and the plants getting to 5-7" i repotted into grow bags and now, after 2 days all new growth is Yellow and unhealthy looking. All old growth is still green and fine. This is a F@#king nightmare. Those plants are...

Not sure will check tomorrow, but have cut them in half and used them as half barrel type vessels! I will t4est 1 for sure, i remember reading an artical years ago about some dutch guys experimenting with light using strobing and other lighting patterns. I have been away from growing for a...

Wow mate, great advice / info. Your setup sounds very similar to mine, this crop will obviously be dissapointing due to the bad start to life my they had. What root stimulators do you use? have you ever used fishe blood and bones? Have you ever used grow bags? Although not deep they are...

This is something that i thought about but then really why would it stress the plants? All i would be doing is mini cycles. The massive temp variation would surely do it more harm? IThanks for sharing your opinion with me. Cheers DB

I take it from the lack of response that a) know one tried this? or b) its somehow a dumb question? Either way would love a response Cheers DB:?

Seems quite a dismissive reply. Mother nature wouldn't put a 600 sodium light above a plant either. I think it could be an interesting experiment and would like constructive feed back. 'If your using HID's they take time to spin up to normal operating output.' thats a good point, how much...

I had might still have gnats. I searched everywhere and had loads of suggestions, these are what i used. The cheapest control i found was ground cinnamon. Cheap easy to buy and smells nice as well.;-) More expensive was gnat off. Expensive and you have to wash through soil making the soil...

As it says in the post, i am growing LR2s for the first time in soil under a 600 Son t light. I wanted to know if it would be possible for an alternate lighting pattern as the plants are automatic flowering? I plan on having the light on for 1hr 45mins and then off for 15min constanly...

That is ggood to know. You sound like you have a similar set p to myself, i'm using a 600w sodium. What is your average yeild per plant? Any tips on increasing the yeild? Cheers mate DB

Cheers for the advice. Very good news, they have made a 100% recovery, looking fine now although being LR2s i'm sure the end crop will have suffered. But i know for the future. As for the grow bags, they measure 3' x 1' so i'm thinking with 3 in each there will be plenty of root space, and...

Right. They have perked up nicely and are now growing!!! Not gonna use the manure based compost instead i'm going to plant straight into large grow bags i think that the growbags will be plenty big enough for what i'm growing (lowrider 2). if anyone disagrees would be interested to hear why...

Agreed on the watering, 'let the roots search!'. Do you guys think if the plants do recover in their 3" post, when i transplant them in to the finishing pots i can use the manure based compost without doing more harm to the roots? I'm not sure if thats what i'll do as not knowing the exact...

Hello guys. Ok, job done replaced all old soil with new seed specific stuff, have been misting them often to replace any moisture lost by insufficient root system. So far plants look OK, no wilting and no further browning of the leaves so far!