Hello, I have not been in the hobby for that long but I do know a good bit. I just recently noticed these little tiny bugs everywhere in my tank and I don’t know what they are. I have 5 different kinds of zoas in my tank but they seem to really like the one in the picture I’ve attached, they swarm it to the point it stays closed most of the time. They also really like my gsp to the point where it stays mostly closed as well, which is also a picture I’ve attached. They’re not only on the corals though, they’re spread out everywhere in the tank. I was thinking it’s just a bunch of little snails but they moved very fast as if they’re walking, could it be amphipods? If so, is it bad to have that big of an explosion with them? The tank is a 14 gallon, I haven’t had any fish in there for a good while now. Is there any fish or shrimp that would help that I could add and it would be okay in the size aquarium that I have?