Tiny Spiders on the Glass?

[Pier Pressure]

Okay I have had several snail hatchings in my tank and know what the baby snails look like, from the time they are eggs to the time they are tiny snails.

But yesterday when I was going to clean the front of the glass, I noticed a cloudy patch and upon closer inspection it looks like a bunch of tiny little spiders, all contained within one area. They are super small and white or clear in colour.

Anyone ever seen this? What is it ?