"fish lover" wrote in message
Would you put a wolf in the chicken house and hope he would reform and
ignore the chickens? I guess is no.

Same thing as fish. If he reguard something as food or competor, he
will go after it, no matter what you do. It takes millions of years to
form such things. You can not change it in few days/weeks/months.


I have been having problems with a hyper-territorial green terror in my
75


No frankly to compare your analogy, it's a wolf in the wolf house, with a
couple of cape buffalo, a leopard and an elephant. Convicts, Red Devils,
Mbuna, even Oscars are all territorial. And yet while it might be news to
you it is possible to establish peaceful community tanks with any of those
species, given enough space and correct management.

DB