Sorry to pick up an old thread - just wondering how this worked out. I have a Foxface Lo in my 160. He was the third fish in my DT (after the predictable pair of clowns!). He spent a week hiding in the QT before coming out to eat, but in the DT he became super-confident and vibrant, and would even swim up to the glass when people were near. After 2 months I added a pair of small Swallowtail Angels that were aggressive but not harmful with each other, but didn't seem to bother the Foxface other than him stressing over their darting around. 2 months ago I added a pair of Wattanabe Angels, the male being about the size of the Foxface at 5". Once settled in the Wattanabe proved to be pretty aggressive in chasing the other angels (without any signs of actual damage) but seemed to leave the Foxface alone. Recently, however, the Foxface has been consistently dark in color, and under blue light appears to have small bruises which appear and disappear quickly. He also began eating algae like a maniac and has become pretty heavy. He's eating and will swim around but has gone back to being very jittery when approached. I'm thinking of removing the male Wattanabe and then perhaps even the other Angels to see if he responds. A friend suggested putting the Wattanabe in the QT for an extended period and then reintroducing him - has anyone had success with this? I could see that it would give the other Angels time to grow to nearer his size but not sure how it fixes the Foxface stress when they're back in the same tank.
footnote: I did also add a lot of rockwork recently and in the process of adding a ton more hiding spaces removed the cave the Foxface used to slkeep/hide in.