I see multiple things on my glass, my tank was empty for over a month except for all my inverts (no coral just hermits and snails) and I just added some new fish and noticed all these weird critter/things on my glass. Any idea what they are? I’ve had tiny little white worms on my glass for months and they never effected anything. But I’m noticing a few other things as well. I’ve attached an image. Please help me identify these!