One thing for the spider mites,put a tiny capful or half a capful of rubbing alcohol into the spray mixture. I've used it one vegetables in the garden,as well as my grandfather did in his 35r years of growing african violets. It should take care of the ones still there if any,as well as kill off the hatchlings easily. Then just spray it with some pure water twice a day(I highly doubt the water would cause mold,due to it would probably evaporate/absorb quickly) for a couple days.