DotDash Butterflyfish Dieing....need help....

[Tuton]

Three days ago my DotDash Butterflyfish stopped eating and now I found it stuck behind a rock
Nitrate, Phosphate, Ammonia and Nitrite are Zero
pH 7.8
Alkilinity 180ppm
No unussual markings on the outside of the fish except for a slightly tattered fin.
The fish was eating great before he this
He was bullied a little bit by my flameback but it wasn't more than an ocasional chase and no nipping
any Ideas as to anything I can do???

 

[Dr Colliebreath]

I would try to put a divider in the tank to isolate your butterflyfish from the other fish as it sounds like it is getting picked on. Better yet, take the flameback out of the tank for a while. The butterflyfish is getting bullied more than you think to stop eating and jam itself in the rocks.