Should be hard to capture a pic. They are small white wiggly worms. I hate worms and have not cleaned the top surfaces under the lid in about a month or so. Fish love to eat them. They are thin and about 7 mm in length or less. Usually about 5 fall in the tank when I open the lid once a day. Yuck I know. No flys in my house or and bugs at all. Never had this happen all the many yrs of fish keeping.