Unidentified Critters Spreading

I have a small tropical aquarium. Most recently I added a nerite snail. Soon after these little calcium looking immobile critters started appearing. This is a closeup of my algae scraper

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Full size: i.imgur.com/szi1fqF.jpeg

Any idea what they are? Can they be safely ignored or should i attempt to eradicate them?

Has the snail been on the scraper?

Could be nerite eggs. Won't hatch but they do lay them

Well that would make sense. I googled nerite snail egg images on google so that's what I'm guessing it is. I'll leave them be on the off chance I get some free baby snails.