I have some guesses, but what are these guys

[Treehrtsme]

They kind of popped up out of no where in 2 of my tanks along with bristle worms and apstasia, but I'm not 100% on what these other tiny guys are. Will try to get better pics (the tiny guys on my wave maker magnet)

 

[kevgib67]

Amphipods, good guys and scavengers. Plus nutritious food for your fish.

 

[Idech]

I was thinking spirorbid worms but the picture is blurry. Do they move ?

 

[Zydan777]

Looks like Amhipods

 

[TehBrainz]

Amphipods, good guys and scavengers. Plus nutritious food for your fish.

Looks like Amhipods

They nailed it. Tasty treats for the fish that can find them.

 

[Nate Chalk]

Snakes?

 

[Treehrtsme]

Yeah I figured that's what they were, but ever since I took down my algae reactor I've had all sorts of weird creatures moving around my tank, especially the bristle worms which I thought I'd finally gotten rid of...

 

[Treehrtsme]

Here's some more picks with some bristle worms in the background. Still not great pictures but for some reason they seem to like to hang out with the bristle worms. When I started targeting the past anemonies I noticed all the other stuff coming out of my rock work. Figure nothing likes citric acid

 

[kevgib67]

Scavenging, both are scavengers.

 

[Treehrtsme]

Another odd concern, though I'm not exactly sure if these are critters or what, but these little black horns have started popping up protruding off of rocks recently and one of my tanks. I have an ominous feeling that this is a prelude to something that I'd rather not have. They're hard and don't react to touch or anything but they're popping up everywhere. All I had in this tank right now is a long spine, so pretty much no bioload

 

[kevgib67]

Another odd concern, though I'm not exactly sure if these are critters or what, but these little black horns have started popping up protruding off of rocks recently and one of my tanks. I have an ominous feeling that this is a prelude to something that I'd rather not have. They're hard and don't react to touch or anything but they're popping up everywhere. All I had in this tank right now is a long spine, so pretty much no bioload

Vermatid snails, no beuno. Their webbing can irritate coral. Get some bumblebee snails, they eat them. In the meantime you can glue over the opening at the end. Not the end of the world, my bumblebees took care of them and I haven’t seen one in almost two years.