It is a problem for me that another fishie died. But what he died of was most likely unrelated to what is causing the fish in the tank to die, since they have zero contact with each other.
This time it was one of my bettas… the red one I bought almost a year ago to put in my office at work. It’s been living at home since I left that job. For the most part, he lived in the bathroom.
That’s why he was named “The One in the Bathroom.”