black worms on roots of hydro roots. HELP!!!!

Yesterday i found these little black worms in the roots of my hydro system. Could anyone identify them and tell me how i can treat this? Also, my plants are in their flowering cycle and quite strong. Would it be alright to chop off most of the roots in this stage to clear up the tangled mess with my feeder tubes? thanks
 
So here is a pic ofthe clones i have going. I started them 12/12. And this is the best pic of the worms i have on the roots given the camera I am using. Soooooo? Anyone know what it is or what to do about it?​
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