Haha yeah he seems lonely. Poor lil guy. I wanted to get a few more but decided against it just in case.
I used some of that stress zyme stuff (useless I know) and put in a few flakes every second day to get the bacteria growing. i tested it all, it seems fine.
My Danios is sort of.. sacrificial in a sense..
If he survives for a few days I know all is well xD