Do they crawl around or slide? Do their bodies stretch when they move?
Thank you, I’ve been so concerned. I don’t know about hydroids, what do those do? I have a LOT of bubbles on that rock, they never move. I thought it was like superglue or fake bubbles lol. I didn’t put them on there though, so I didn’t know for sure.
Just gonna reply to all your questions with this one message - they do move, but they’re sooooo small. They just move around in their little area they individually are in. If I could send you a video it would be much better, cause pictures don’t really help. They look MUCH smaller than the flat worms I’ve seen on Google/YouTube. They’re literally small enough that I can’t see them moving with just my eyes, only with my camera zoomed in & focused on them.
Flatworms are very visible by the eye. They slide across your glass like a inch worm but don’t lift just glide. Pods scurry around like bugs on a piece of fruit. If you get long tweezers or something to put near them they will run around on the glass of pods. Flatworms do not hold on very well to things to a simple blow of a Turkey baster will dislodge them into the water column. Most adult pods are visible also.
LFS definitely wants you to purchase items to help fix tank but dumping a bunch of stuff in your tank is not a good idea. Is that your only LFS?
It’s not my only LFS, I have 2 other ones I could use but one is only open weekends for a few hours, the other is 45 mins away and closes before I can get out there after work. I was going to go to petco or pet supermarket but they don’t have what I need anyway. And the little bug things on my glass are very small, not visible to the eye. They don’t look anything like the picture you showed me, what I have are so much smaller. Like tiny. I also don’t have those white things, it looks like those are a little bigger than what I have. And there’s a lot of them too. They’re dark brown, very small, and they herd together on the glass. There is a light brown haze surrounding the area where they are at on the tank’s glass. I wish I could upload videos on here to show you
I was using a zoom lens on my phone so they might look bigger...?
I think that’s a LimpetPossible vermetid (pic very white)
I’ve been so worried lol. I actually have vermited snails, but they are on the other side of the tank. I didn’t post pics since I already confirmed those but as far as those little white worms, they all look the same to me - literally like a small rope of sand. And the limpet - I have a video of the snail on my glass with the white worm thing sticking out from its right side, by its head (?) and it keeps moving around. 
