What to do about light bleach

Out the power a lil Bit down or your light a Bit higher I would say

Actually, i'm right now at 110k lux (around 2000ppdf) temp (32°C × 9/5) + 32 = 89.6°F with CO2 of course Plant doing all righ (also in 6|18 cycle) i get those at 333ppdf without CO2 stretch em to sides and tie with soft thread

Google: Supercrop during flower. Good technique to gain back canopy height and increase yield.

Technically once you remove heat as a factor there is no such thing as too much light, too much saturation will cause chloryphyll to degrade faster than it can be replenished under High Light Intensity. Plants outside regularly handle 3k+ ppfd outside and shoot way over dli. There are mechanisms that you can support to better deal with the stress off excess light. Magnesium makes the central atom in chloryphyll so making sure everything is flowing 👌 is Important for replenishment. Several vitamins play a role in helping plants cope with excess light, primarily by acting as antioxidants and protecting against oxidative stress. Vitamin C, Vitamin B1, Vitamin B2, and Vitamin E. UVA radiation can indirectly promote zeaxanthin production in plants by triggering the xanthophyll cycle and influencing the activity of the BCH enzyme, ultimately contributing to the plant's ability to cope with high light stress. C60 fullerene has been shown to remove reactive oxygen species (ROS) in plants. Specifically, C60 can act as a free radical scavenger and may even mimic the activity of superoxide dismutase (SOD), an enzyme that helps detoxify ROS. This ability to neutralize ROS can help plants cope with oxidative stress, which can be caused by various environmental factors. If it gets worse you should bend it lower or half snap it. Or use it as experience to see what happens and learn the hard way why we flatten a canopy before flip. Lol best of luck.

Have you considered using HST (High Stress Training)? You could carefully bend down the overly tall shoots to manage the canopy. Otherwise, you’d have to accept that the lower branches receive less than 700 µmol. Personally, I’d prefer to slightly sacrifice light for the lower growth rather than risk the taller tops getting burned – that would be a real shame.

Hey Growmie, Sounds like your top colas are getting a bit too much love from that light, 1300 PPFD is pushing it unless you're running CO₂. If you’re already seeing signs of light bleaching and don’t have more vertical space, you’ve got a few options to help balance things out: Supercrop or bend the tallest tops — gently soften the stem between your fingers and bend it away from the light. It might stress the plant a little, but it's better than bleaching the buds. Raise the light (even slightly) if there’s any room — even an inch or two can make a difference. Dim the light if your fixture allows — dropping the output just a bit could bring your PPFD closer to the 1000 range up top, which is safer. Boost lower canopy exposure — defoliate lightly or train other branches to even out the canopy more, giving the lower buds more access and taking some pressure off the tops. Rotate the plants daily if possible — helps distribute the light more evenly and reduces localized bleaching. If it gets worse and the top buds start to lose color or get crispy, you might need to dim the light or pull the plant back more aggressively. The second plant being fine suggests it's just that one cola catching the brunt of the beam. Better to sacrifice a bit of top intensity than lose quality or growth entirely. You’re close to dialing it in — just a little canopy control tweak, and you’re golden!

Don't turn those lights any higher than 1000 umols.1000w led,s should state only to be used in full power with co2.Don't dont go any higher than 900 and I only have it that high during mid flower.I knock it down a little especially at the end.I guess the temps are up,haha.My leaves pale if its under 27c if the power is up and the lights are close.The say bthe sweet spot for leaf temps is 28c and they'll be 1-2c under the air temp.

1300 ppfd is way to much without CO2 supplementation… lower intensity to 900ppfd