No glass worms. I went out with the flashlight and searched around it and under the submerged leaf, messing that one up too, and what was left of the eaten leaf. I'm thinking now that it must be some kind of moth, we have an enormous number of moths and butterflies and such down here. I see another new leaf starting at the base so I hope that the life cycle for this whatever is over and these 2 small leaves will make it on the surface. Otherwise, I will try and take it up on the roof to the kiddie pool where the temps are higher and the water is shallower. I really don't want to lose this nightbloomer, it would be very hard to get another.