Spider Mites are a common problem when growing Cannabis it usually occurs with outdoor grows more then indoor. It will look like little spots on top white or yellow and the mites hide underneath the leaves, so you will have to look out for that. They can be seen with a Jewelers loop or Magnifying glass. You can use a few different products on the Spider Mites or also make a spray with a mild soap the kind without a degreaser about 2 teaspoons per 1 liter spray bottle and spray that on the entire plant. I use Neem Oil on mine and spray the undersides of the leaves ever 3 days because the bugs will lay eggs every 3 days. So spray with either of those every 3 days. You can get Neem oil its inexpensive from a garden shop or order it on Ebay or Amazon. It is a organic product but I wouldn’t use it in flowering stages and if you need to don’t use it for a month up until harvest time. So if you spray it, allow it to flush out for a month before harvesting and I’d also cover up the Soil with plastic baggies while spraying so it doesn’t soak up the soil too much. Neem Oil will work for a number of pests. They also have Mite washes you can get for them. This should solve the Spider mite issue Since I was asked about this a few times. Thank you for reading and Happy Growing!