The only reference to "too much" light refered in the article above, states,
Having too much light for photosynthesis can occur in indoor gardens as well—more commonly with younger plants or with those that have been grown under lower light and then planted out under a greater light...
I just switched mine over to 24/0 about 3 weeks ago. I definitely noticed a difference in growth. I actually think my plant is going to outgrow my 5x5 tent now....anywho i switched because of what i read in the grow bible, and it made complete sense....
P.s.
I switched because I needed...
I believe Uncle Ben has a topic on this somewhere....from my recollection it says to use a clean razor blade, and go North to South cutting in a few spots then repot
I use digilux, same output as hortilux and cheaper....i own 1 hortilux 1000w hps but thats was a freebie for something i bought. Hortilux is ridiculously priced and they know it. There was a thread on here talking about a website was given the cold shoulder by them because they refused to sell...
I was running at about the same for at least 2 months with no ill effects. Temp would be 88-92. This was from a 600w mh, 4ft 4 tube t5 fixture and 4 small cfls at 23w a piece. Im in a 5x5 area. I was forced to remove the t5's and cfls for space and my temp dropped to 74-80.
They should be alright as long as they arent mangled...they might dry quicker than the rest of them so try and keep them grouped together so you can analyze them more often...
Im about to flower my mother white widow i popped from seed november 2nd. I think she is going to grow into my light but she if about 3 1/2 feet wide. I think im in trouble....shes gonna be a light hog to the others and she already drinks like a sailor....
Just me, i always ph my rockwo at 5.8 or higher. First time i did 5.5 i locked mg out until i raised it....i never really have fluctuations in my rockwool either...alot of ppl i read about says it rises, i never get that....
I ordered the diesel fire from them about a month and a half ago....they said 4 secret og's for freebies and i ended up with a baggie of 7, great shit on their part!
Offer 60$ and its yours, he has it set on auto accept. 4yr warranty also....they also ship super fast for being a bigger seller on ebay.
http://www.ebay.com/itm/NEW-CAP-OZN-JR-Ozone-Generator-Hydroponics-Odor-Control-Purification-Ionizer-/230891878009?pt=LH_DefaultDomain_0&hash=item35c23a7679