I bought a gallon size jug of cricket food from Josh's Frogs a while back, and I have been happy with it so far. However, recently today as I was putting fresh food into my cricket bin I saw small, elongated brown beetles and what looks like their larvae crawling around in the food. They just barely reach 2mm and I want to know if they are a threat to my crickets. I don't know how they got in it since I keep the lid twisted tight. There is still a LOT of food in the jug I don't want to have to throw it all away if it isn't necessary, please help.