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Depends on the light. You can hang the sdame height and dim up and down, or raise and lower the light, but some designs are better suited to being closer to plants, usually the lower powered bar lights. Lux meters are only useful to compare the intensity of the same light or group of lights, as...

A few more shots at 9 Weeks. Only one remaining Hze plant in the tent now. One was taken down at the end of 9 Weeks and the other at 9.5 Weeks. This las plant will stay in there for at least another two weeks. It is a complete monster and is still bulking up.

I'm very interested in how these do as I have some test seeds just sprouted from Paradise Seeds that are Citral x White Widow. The Citral is the same plant used in the Sweetopia cross, which is outstanding.

Popped some 15-year-old Atomical Haze seeds a few months ago. Here they are at about 8 weeks of flowering. The one on the right will go for at least 11 weeks. The other two will be finished in 10 weeks. There are a couple of Glowstarz hiding at the back, but the Hazes have overgrown the tent...

Yes mate, I'm a believer now. Still need to get used to growing horizontally, but the results have been pretty good so far. I do have plans for a vertical LED grow which are coming along slowly but surely.

True. They can actually throw more light (over a wider distance) because there are more diodes. But there is also a lot more work involved if he plans to solder them himself. It's also worth remembering that the top efficiency bins are not always available to smaller retail buyers, plus you...

Nichia make the most efficient white-phosphor diodes. Have a look at the 757 series. They also have some really nice narrow-band phosphors, too,but they are not as efficient as the regular white phosphors.

When lights are off plants starts to reverse photosynthesis. Photosynthesis uses CO2 + H2O + light energy to produce carbohydrates. At night, it is the reverse, so carbohydrates (stored energy) + O2 are used up and CO2 and H2O are released, which is why humidity goes up at night. I also want to...

It can get to 2000+PPFD in the middle of the day in summer, but it doesn't maintain that level. Sunlight also has a lot of far red light to balance out the other spectra. Not all PPFD is created equally as blues and violets carry more energy than reds, so colour temperature (spectral spread) is...

I would have to disagree. Light is light, and plants will always grow towards it, whether it is top or side-lighting. I grew with vertical HPS bulbs for many years and used to consistently pull 1.4gpw and almost 4lb from a 4x4. You can't pull those numbers from a 4x4 with top-lighting alone. A...

I use around 50W of side-lighting in my 4x4. It's worth it, turns fluffy larf into thumbnail sized buds. My side-lights lights are PC Red up top and 6500K below. It's not a bad idea to get a bit more blue light into the lower canopy as most of it is absorbed by the upper canopy which let's...

Here's the latest round. The last grow yielded 29oz, which is OK but I'm hoping to do a little better this time around. In the front we have two Sweetopia, left and right, then in the middle is a different Tangerine Sorbet pheno #1 (the biggest yielder we have found out of 8x Tangerine Sorbet...

Hey, great to hear from you mate! Yes, they are pretty flexible the old Buddies and I use a very similar set-up for my own cloning cabinet. I hope everything goes well for you soon. I know you've had a bit going on, and this hot weather doesn't help! But a cooler change is coming , and as with...

I remember those grows as I helped set them up. 3000K CMH is a good spectrum but I always thought it could do with more red and especially more far red. The above grower was happy with the mix of CMH and High Red boards, but one of his friends was even happier because he liked it so much he...

"Say hello to my little friend!" This is Glowstarz #4 and it is an absolute beauty. Currently at 65 days of flowering, it still has a couple more days to go. Trichs are now mostlly cloudy, but there are still quite a few white pistils and she continues to stack calyxes. Although Glowstarz is...

Thanks mate. I hardly defoled this one at all. I pulled off a couple of fan leaves at the main stem/branch junctions early in flower, but that was it. This plant grows naturally like you see, which is why it was so easy to trim. I trimmed it last night and it took hardly any time at all. I'd...

Here is how Tangerine Sorbet #2 turned out. Such a pleasre to trim! This one is a keeper for sure and will get another rotation soon. It was well and truly finished at 8 weeks of flower.

We're not exactly sure why this happened. My hypothesis is that more CBGA is being synthasised into CBDA than THCA. Or it could be that the UVB is breaking the THC down into CBN whilst not affecting CBD as much. I'm leaning towards the first hypothesis and I think I may have seen some evidence...