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Cheers @BuddyColas , the hanging height was my main concern & i'm seeing improvements in my girls health after adjusting my fixtures height based on lux so all good.

I know that using a free lux meter app on an android phone is far from ideal & different spectrums & give different results (correct me if I’m wrong). Hypothetically though say for instance I was trying to get the same intensity as a friend running the same make & spectrum of cob & we both used...

@1212ham thanks for the links. I've read them already. I did a bit of looking around online off the back of one of those threads & that's when I started coming across contradicting max figures so I started up this thread to try & get some clarity. @GBAUTO cheers I understand it’s not the best...

Thanks @Chip Green. Sounds like I may have had my lights a tad to close then. Live & learn.......

@CobKits 3500k

Thanks for the responses. @CobKits at the risk of sounding thick, what is 700-900 umol in Lux roughly? Is their a conversion calculation of some sort?

Hey @Chip Green thanks for the response. So, around the 50,000 figure is the safe max for you. Is the 50,000 lux you settled on solely based on the experience you had with your plant turning white or to do with something else?

Can anyone tell me the minimum & maximum lux at canopy when flowering with COB LED’s? I know that ppfd readings are more accurate/appropriate but I don’t have a par meter & I’m not in a position to get one anytime soon. I do however have a lux meter app on my phone. Probably not the most...

Interesting. I've got 1 cob psf which I have been running at 40w per cob in flower. Just used a lux meter app & converted the lux reading to par & it came out at around 1400 par! doh Plants seem happy enough bar a little yellowing at the tips which I put down to me possibly running to high an EC...

Hey Jeb did you pop any of these Top Shelf Seeds? I can't help but think they are trying to cash in on all the hype around a lot of the modern strain names. That said I find myself hankering after a pack of the pineapple crack!

I grew one of these out towards the end of last year. It was a strong vigourous plant that yielded just under 5oz which considering it had to put up with me accidentally over doing the bloom feed is not to shabby. Unfortunately the high was not all that good. It was to clear a buzz. I acctually...

I've grown with HPS & LED & personally found that my buds are frostier under LED. I get smaller buds under LED but more weight in total & visibly more frost.

Lots of people have reported either calcium or magnesium deficiencies when switching to cobs. I haven't seen any solid explanations as to why this happens as yet. Everyone seems to be just adjusting their nutrient profile to include extra calcium & mag to avoid deficiencies setting in. Your ph...

In autopots the plants have constant access to water/nutrients so unless the valve is stuck closed (with he said isn't) it isn't a lack of watering. Even a big plant in flowering will not dry out a 15lt soaked pot in 2 hours. The tray may empty in 2 hrs, especially if the coco is in constant...

no worries your welcome!

I asked to try & gain your experience level with autopots. No offence meant. In all honesty I am unsure so I am just going to throw all the possibilities at you. 1: Autopot recommend (from memory) a 2 or 3cm layer of clay balls or perlite at the bottom of your pots to prevent direct contact...

Your set up & my set up are very similar. There are a few possibilities. Have they been like that ever since you put the pots in the autopot trays? Have you successfully grown with autopots before?

7 weeks from the day you flip the lights. That's as per a dinafem rep on another forum.

Flushing is a personal choice thing. Some people swear by it & some people say its pants. That aside the Critical 2.0 is meant to be a 7 week strain. My Critical 2.0 are actually ready to go at the end of 6 weeks. I don't think you'll do yourself any favours keeping it going another 2 weeks just...