Got him a week and a half ago at FAOIS. He ate at FAOIS. Didn't eat the first day home but after that devoured bloodworms like they were candy. Great looking fish, no diseases.
Yesterday he didn't eat too much and this morning I found him in my overflow against the eggcrate breathing fast.
Pulled him out from the eggcrate and he swam for a few seconds mostly inverted in a vertical circle. Then nothing but breathing heavy.
I figured if he was stressed he'd recover or I'd come home and see him dead. He was dead in a rock when I got home.

Ammonia and nitrates are at 0. Corals and pep and cleaner shrimp are all fine, no deaths among CUC.
My only guess could be it was cyanide caught?
Yesterday he didn't eat too much and this morning I found him in my overflow against the eggcrate breathing fast.
Pulled him out from the eggcrate and he swam for a few seconds mostly inverted in a vertical circle. Then nothing but breathing heavy.
I figured if he was stressed he'd recover or I'd come home and see him dead. He was dead in a rock when I got home.
Ammonia and nitrates are at 0. Corals and pep and cleaner shrimp are all fine, no deaths among CUC.
My only guess could be it was cyanide caught?