Is another symptom a rapid (very -- jackhammer-like, even) "choking" motion? I have a male Labidochromis caeruleus (an African cichlid from Malawi) whose behavior has been similar. On Thu, 12 Jun 1997 14:30:17 -0400, you wrote: >These are some comments that have already been made: > > The fish (more often male, it seems)=20 >becomes slightly less active, and less interested in food. His mouth >hangs=20 >open just a bit -all the time. Over the course of the next few days, = his > Brian T. Forsythe crom@cris.com "[Commitment is] like bacon and eggs -- the chicken is involved, the pig = is committed." -- Red Green