oh... I see what you mean right there.where did I say that its okay to put more fish with him? A fish with herpesvirus can expose it to other fish and can be fatal for them.
I've seen bass chasing and beating up other tank mates countless times. Think it like a cichlid. As a datnoid owner, you must know this that datnoids do not deal with an aggressive tankmate very well.
Also, I don't think it is herpes virus thou, they look more like fungus and fin rots.
A few years ago, I brought a Baramundi, and when it was introduced to warmer water, the fish filled with like cotton balls. After reverting it to cooler water, they disappeared, is that the symptom of herpes virus? This is the same thing happening in this bass at the moment (the white cotton part is peeling off from the fish).
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Yeah, datnoids will fight back, and often injure themselves in the process...