Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
I think you got Nerites.
They lay a different sort of egg, singly, usually on the glass, but could be anywhere in the tank.
The jelly blob with white spots is pond snails. I would remove it ASAP. This probably won't stop the population explosion, though.
Feed whatever foods you are feeding near the front of the tank and watch. If any pond snails come to the food, remove them. Pond snails are not quite round, slightly football shape (American football, not soccer) and dark. Sort of charcoal-dark brown. The largest I have seen were about 1/2" diameter, and baby snails are (of course) a lot smaller, down to the head of a pin size. At that small size they are almost clear, no color.