Reef Bass
colors and textures
Some of my buddy's previously incredibly furry, insanely colored acros started losing some color and polyp extension. I went hunting with my macro lens and found these things. As is often the case, reduction in color and pe can be due to a combination of factors, not always just one. However, I wonder if these things are part of the problem. They are very similar to redbugs, little arthropods, but they don't look like any redbug I've ever seen.
Here's a big fat one that didn't move much, other than with current. It is so fat it almost looks like a gastropod, but it did have little legs.

There were also numerous small ones, which were much more active, scurrying about on another frag.

For comparison, these are the redbugs I usually see with red heads and yellow bodies.

While I'm not so concerned with the color differences, the body shape of these new to me things seems very different from "normal" redbugs.
What are these things? Are they parasites?
Sure look that way to me...
Thanks for your input.
Here's a big fat one that didn't move much, other than with current. It is so fat it almost looks like a gastropod, but it did have little legs.

There were also numerous small ones, which were much more active, scurrying about on another frag.

For comparison, these are the redbugs I usually see with red heads and yellow bodies.

While I'm not so concerned with the color differences, the body shape of these new to me things seems very different from "normal" redbugs.
What are these things? Are they parasites?
Sure look that way to me...
Thanks for your input.