She sees the food, and just lets it pass. Sometimes she will go up to it like she is going to eat, and then look at it and decide not to.
I have looked the best I could at her, and I see no sign of anything.
I have watched them as much as possible when I am home, and I have seen no signs of bullying. I posted a video in the habitat section. You can see they are fine with each other. I have seen from time to time some minor chasing. But surprisingly, more often than not, it is her chasing the other.
Other times they used to be seen hanging out together.
During feeding time, they never have had a problem. I would get home, and they would see me come up to the tank, and they would both be right up top and up front. I put in some pellets and they never fight over them.
She was having a problem with the inconsistent size of the Aqueon stuff. Seemed to struggle with anything that was larger than the typical NLS size, often spitting it out. Which is what made me think it was the food. I only figured this was confirmed when the first day I brought home some NLS, she ate it right up without issue.
Should I just try another food? Even when I first got them, and they were in their own containers, she never ate as much as the other anyways.