Ned,
Is it possible my problems could be an internal parasite?
The fish may have excreted a worm like creature about 3/16 in length and 1/64 in diameter. Amber in color. and moves in erraticly.
Since we spoke I lost a frontosa also. He went down hill in a matter of 12 hours. The last Tropheus doubasi is hanging on by a thread. I suspect he passed the worm. Although he is ill I did see him pass something.
I have managed to capture this little monster in a vial. If anyone would like to see.
Anyone may feel free to field this question. The symptoms are fish begins to spend time at the top then moves to bottom and shows dificultity breathing. After laying on bottom for 12 to 24 hours it dies. when found dead it is very pale. Very little bloating is evident.
Greg