These things look like, by the
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eye, they are about 1/100th of an inch (very tiny). Looks like they are floating all over the place. But when attatched to the glass they seem to be able to move against current. Would need a micro-scope to really see them clearly. There are so many that it looks kind of like a bunch of tiny bubbles.
Thanks for your response. I've been reading threads and know that you have the knowledge to help.
Thank you