Those are either pods or micro bubbles - I can't tell. But yes, I have a lot of pods (both cope and amphi). I'm really thinking about getting a six-line to cull the population a bit to be honest. Though the amphipods do a good job eating the food that gets away from the nem when I feed it.
That's great about the shotglass! I thought for sure they were goners. The tall shaving brush bit the dust

The shorter one (mermaid's brush?) is doing fine and showing a new growth at the sandbed level.
In other news, I have some dictyola that is growing everywhere! It has the translucent blue stem tips. I'm afraid of it taking over - is there anything known to eat it or am I just going to have to keep pulling it out manually?