Probably snail eggs.
Aquarium snail eggs are usually small, clear or translucent, and can be found attached to surfaces like glass or plants in the tank. They may appear as small gelatinous blobs or clusters. If you see these characteristics, it is likely a snail egg in your aquarium.
Clusters of cells surrounding a single egg are called primary follicles. These primary follicles house the immature egg (oocyte) and provide support and nourishment for its development.
follicles
mate your fish for coins or pearls
Water will leave the egg
Those are called globular clusters, or star clusters.
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Comcast has super clusters of subscribers from New Jersey to Washington D.C. and in between those states.
You don't need to do anything until it hatched. sources: http://www.yayeasy.com/happy_aquarium/surpise-egg/
polystyrene foam
you have to get in about the cinter of the aquariam top and tack out the egg from the bottle.
I got a goldfish. I'm sure it varies though.