Also blennies with the same body type can fight. The dragon blenny is that a type of scooter blenny?
The yellow spotted blenny I am wondering if it isn't a goby. I seen all sorts of names put on fish that are wrong. My lfs
does its best to label fish properly however they are sent surprises all the time.
A maroon clown will limit the type of fish you can put in the tank once it starts showing its aggression.
If you want one larger fish you could go with one of the smaller foxface like the lo foxface Liveaqua says ues with caution but I know several people that have them in their tanks. Saltwater Aquarium Fish for Marine Aquariums: Foxface Lo
I do like wrasses if you look you will see there are several lined wrasses I saw a beautiful 12 line the other day and if I would have had a tank to put it in I would have it today. Yellow coris is another one that is very pretty.
Is the yellow spotted fish a goby?
I lightly stock all my tanks it makes it a lot less stressful it stresses me if my fish get stressed. In an 80 gallon tank I wouldn't put any more than 8 small fish in. If I was doing larger fish maybe I would go as high as 3 large fish but would probably stick with 2. But that is just me. If I put the fox face in with the fish you have I would stop there if I went with smaller fish I would put in another 2 or 3.