Monti pests with microscope photos

[eigenbot]

I saw some little white/clear bugs with a dark stripe down their back on my Montipora and more little white dots that look like eggs. I immediately guessed Montipora eating nudibranches, but when I looked them up online they don't look very similar. Hard to get normal pictures, but I do have a microscope. Pictured are a big one and a couple of what I'm assuming are eggs. Can anyone help me ID them? I didn't see them anywhere else in my tank, but they were hard to see on the Monti too.

I've put the Monti in its own spare tiny tank for now, but it has never done well with me and is already largely dead (I'm sure these bugs didn't help). Should I be worried about anything else in my tank?

 

[taricha]

Hard to get normal pictures, but I do have a microscope. Pictured are a big one and a couple of what I'm assuming are eggs. Can anyone help me ID them? I didn't see them anywhere else in my tank, but they were hard to see on the Monti too.

These are a type of common isopod, and are really unlikely to be predators on the monti. They are general good grazers.
the "egg" looking encasing in pics 2&3 is just the water droplet surrounding the isopods on the slide.
If you look hard, you should be able to find them multiple places in your system.