I just started my 1st grow around a week ago, and today I found a single, small, red clover mite. I don't believe it was a spider mite because I could see it without a microscope and when I killed it there was a small red stain left behind (a characteristic of clover mites). Is this something to worry about? Will they damage my plants (if there's more)? What can I do to stop them from coming back? Thanks for any help. Edit: Just found a 2nd one.