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Many professional breeders can't reliably produce batches of feminized seeds. You would have to gather a lot of knowledge and experience and have a reasonably large professional setup and some competence in handling some nasty chemicals. The only reason that they go to all this trouble is that...

Even using really powerful extraction, cooltubes and air con, etc that would toast anything that you tried to grow. One 600w HPS with good extraction will get you (if done properly) between 0.5 and 1 g per watt if you manage the grow reasonably well. Rouhly between 11 and 22 ounces of dry...

From Wikipedia Flowering is initiated and maintained by the build-up of "phytochrome" in the plant. When exposed to light, the phytochrome breaks down. The plant responds to peaks in phytochrome levels brought about by 12+ hours of uninterrupted night. Moonlight simply doesn't have the...

Too early to tell dude. Nice photos.

Some lovely looking plants there:weed:. The buds look like you've been at 12/12 for 20 days or so? It looks like there might be a bit of nutrient burn in places but it's very difficult to tell under the sodium light. When I take photos I usually switch the sodium HPS off and use a torch to line...

I've just bought some seeds from "Paradox", quick delivery with no hassle. 4 out of 5 seeds have germinated after 48 hours. http://www.paradox.co.uk/acatalog/index.html The seem to have a better range that a lot of other UK sellers. I'll definitely buy from them again.

I like to start with a nice low ph (about 5.5) and gradually let it rise until it gets to 6.4, by then it's time for a fresh reservoir. Different nutrients have optimal uptake at different ph. My thinking is that as the plant moves through the ph range it gets to absorb the full range of...

I've never been convinced about the benefit of putting a plant in the dark for the last few days. I grow in DWC and whenever I harvest I just flush with a finishing solution for seven days, and then chop the main stem and hang the plant to dry for about ten days. Sometimes I stay with the bloom...

CO2 is a by-product of cellular respiration that occurs in every area of the plant. It's completely useless to any part of the plant that doesn't have access to light and chlorophyll. However, CO2 will react with the water to make carbonic acid H20 + CO2 - H2CO3 this will lower the ph...

A few years ago I had a skunk special mother. I'd already done two grows with clones and they had gone into flower at about 10-12 days of going 12/12. Anyway, I had used a cutting off the mother in the early days to sex it, I let it flower for about three weeks and then decided to re-veg it...

The standard response to christians who suggest this is Genesis 1:29 Although nowadays I prefer to tell them that they're right, but I worship the devil, so smoking weed is mandatory.

the first time I did a succesful grow, I ended up staying mashed out of my brains for three weeks (over christmas) I smoked my way through about five ounces of the best quality I'd ever had. It was fun, but not really a long term option for me. Now I pace myself a bit more and always have a few...

I've tried out a 5 day week for my plants in the last three weeks of flowering. You need a seven day digital timer to do it properly. Lights go on for 21 hours 36 minutes and off for twelve hours. That way you only get 5 12 hour dark periods in a week so the plant gets a lot more light. It...

It can be an indicator that the temps are going too low during lights out.

Hi, I'm from the NorthWest UK and have been cultivating for a few years and smoking for a few decades. After having a good look around, I think I'll be spending a lot of time on this forum. I like the smilies, especially this one kiss-ass