no, not really....it sounds like they are probably dying from complications
of the aggression they are recieving...
I think a good uv sterilizer would solve your problem....I had the same
exact situation, I'd loose a fish every few months...and after a c. moori
that I had since it was tiny died in the same way...I looked for a
solution...
since installing a uv sterilizer I have had no deaths in a year, and I keep
12 mbuna (mostly mature) and a frontosa in a 45 which is probably a more
heavily stocked tank than your 150.
"Long Pham" <lrmpham RemoveThis @hotmail.com> wrote in message
news:7c70e7a2.0311251033.1eae3175@posting.google.com...
> Hi,
>
> I have a 150gal with 32 mixed-lake africans. Over the course of the
> last year and 1/2, I had 6 of them die on me out of the blue. At any
> point when any one of the 4 dies, all the others are still healthy.
> The symptoms are basically spitting out food, fins are frayed &
> tattered, hard breathing. I can never catch them to put them into an
> isolation tank so they eventually dies. Is this just a normal thing
> that some fishes dies over the course of keeping the tank, or do I
> have some problem lurking somewhere ? Thanks. >> Stay informed about: Cichild deaths ... Is this normal ?