to any pro dwc users help asap

Can I flush my buckets using canna flush for only say 4 hours ???

I'm on strict time limits and don't want to loose a day of veg flushing!!!

The branches that lead to the fan leafs are pink. And while she is growing it seems to be minimal compared to her sister!!!!

Growth was light green but a res Change greened her up, but I can tell she's not 100%

Whats your goal? I haven't ever heard of "veg flushing" do you have a bad nute mix, ph level or something? A rez change is instantaneous and should correct any additional damage. If thats even what your trying to do

She's got bright pink fan leaf stems and it looks like the veins on the main trunk are slightly going pink.

Her sister next to her (same strain) doesn't have this and growth is slower on the one with pink stems.

No n Ute burn on either. Her sis is the picture of health.

Pink stems did have a bug prob.

Norm as said . Above I'd just change the res. And it worked growth sped up but she's not 100%

Since she's been on canna flush (2 hours now) leaf stems have changed from bright pink to dark purple and it seems to be going.

My thoughts are the canna flush will rinse her out of all nutes giving me a clean slate ?

Norm I only flush at the end of grow, with the only exception of 24hrs plain water between changing from veg nutes to flower nutes

No. You cannot not "flush" nutrient toxicities/deficiencies out of a plant with regards to what you're suggesting.
FLUSHING usually refers to reducing/stopping nutrient feed at the end of flower, and is used
in soil/coco/accumulative mediums. DWC is NOT an accumulative system.
In this case, reset your res, to a proper level to remove the problem.
Purple stems as in main stems (not leaf stems) may indicate a potassium deficiency.

Also, water temps should be monitored. Optimum temp is ~62-68F. If the temp is too
high, certain issues may develop, and be mistaken as a nutrient problem, when it's a
root pathogen problem.

PROBLEM PLANT this is the best picture any ideaS???
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other picks

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BOTH

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I'm not seeing anything obvious from that distance from the leaf. The one plant does look rather dull and sickly colored.
Are there any burn spots on the tips? Little brown rust spots?

What nutrients are you currently using?

Your attempt at "flushing" has likely made her a bit nutrient deficient and stressed. Any damage may show here shortly or not at all
if she's back to getting the nutes she needs and the pH is near optimum so nutrients can be absorbed. (5.2-6.3 range/5.8 optimum)