White specs on tank glass
So i have these little white specs on my tank glass that I don't know what to do with, I'm so close to just doing a complete water change.
So background, I have an 8L tank for my betta fish, temperature set at 24, and it has a three stage filter. I also have a piece of driftwood, I do regular cleanings (I did one three days ago)
Anyway, so I noticed these (about 10) specs when I did my clean, they are solid white in the middle, with a transparent bubbles around them. Some of the bigger ones have a spot of brown. The bit in the middle looks more linear, whilst the bubble is just round (attached photos but not great).
Please help if you know how to get rid of them, I did some reading, and most people said (on the possibilities of what they could be) they are harmless and/or the fish would eat them. My fighter has no interest in them, and I don't like the look of them, they make the tank look unclean so please help.