Might be the nematodes, the food-grade diatomaceous earth and the cedar oil affecting their pituitary glands. Somebody else mentioned their gnats getting bigger, inspiring the illustration. I'm finally making some headway soaking the soil surface and the outside of my cloth bags with good old Organicide from Home Depot. First grow in dirt - FFOF + Dr Earth Flower Girl. Previously used BT cookies in my reservoir but don't want to use that any more.