I noticed a few instances of fish rubbing themselves on the decor over the last couple days and also a few bouts of glass surfing. I couldn't find Prazipro locally so we're doing a course of API General Cure, starting today. Hopefully that will put a stop to that. Fish generally seem to be in pretty good shape otherwise, eating and socializing in typical fish ways.
The Fluval U3 filter arrived yesterday. It's so very much quieter than the Aqueon one was. As a bonus, it takes up less space and uses fewer watts!