is ur plant a clone from a budding plant and what is ur light cycle also how much nutes do you add cause ur roots look good i might say they need more nutes :MoreNutes:
they are thrips larva i have the same problem and had it before and didnt take care of it but didnt have the internet i went to the hydro shop and they said use an organic pesticide it is called organocide homedepot has it cheap grow shops double the price it has fish oil in it but it works u...