Ammonia in Copper power

[Jay Hemdal Verified Community Expert]

So what should i do now ?
Not using any Med just watching right ?
pictilis should be keep 1 male in group , but now i have 2 male in there . I afraid it damged by fighting

Yes, they could be fighting and that caused this one to run into something. If the tank is large enough, you could install a perforated tank divider.