Plant wilting after res change?????

i have a cream caramel in a 5 gal dwc bucket have done 3 res changes so far with no issues. she has been growing good for about 3.5 weeks with no problems as well. today i cleaned out the res with dawn dish soap (as usual) and added nutrients and h202 to the res and put plant back in. 15 min later i had very significant wilting. I have no idea wat it could be. any help appreciated thanks guys
 
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