Okay good idea I'll record the next time I try to feed the "struggling" one. It's important to note that the other aro is having no problem with eating the sticks so it shouldn't have anything to do with the water chemistryhave you seen both aro's eating food sticks? it's possible the one that is "struggling" just doesn't like the taste and is spitting them out. post a video, it may help identify the problem.
your other problem is not a minor one - one of them is getting beaten on, and it will only get worse, until it dies. stress is not a great motivator for eating.
