You most likely have some type of mite. Buy a loop 40 - 60 x for checking the underside of leaves. Once u have identified the type of bug do some research on effective treatments for the specific infestation. Things can get out of control quickly so i would be proactive in dealing with this or ur plants will suffer terribly throughout the grow not producing anything worth while. Good luck and if u need help there are websites out there that have forums to research and people that are always willing to give novice growers advice.
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