Hello, I have something similar in my tigers cage, and in some potted plants. I think mine are gnats, and when I did some research into them I read that you could take some card stock and spread vaseline onto it, as the vaseline is safer than pesticides. The gnats are attracted to the vaseline and get stuck. This would only keep the population in check and not rid the tank of the bugs, and I wouldnt put the card stock directly in the container, but suspend it over the enclosure. I dont know if this is helpful or not, but I bet some others from the site can lend a little more light to the subject. I dont think the bugs are harmful at all, maybe they can even be a supplemental food source if your sallie is quick enough. Good luck, Heather