Hi Me
We actually have a gorgeous colony of "bemba's". I cant comment on the breeding side of things as these are too juvenille, I am sure Steve can help you out there.
I can comment on the feeding though. We have only fed them spirulina flakes and pellets. They prefer the flakes to the pellet, as the pellet seems to get a bit left over and cloud the tank.
Also they 'definately' need a chasing area. What I mean by this is an area clear of any obstructions so they can show off and fight ect.
We have our tank set up with a load of limestone rock, built up at the back of the tank with plenty of space at the front.
We also have plants in our tropheus tank, which seems to be a rare thing, but to be honest they love it. I constantly see them grazing off the swords.
The rest. Well Steve is your man there and as for having your brichardi on his own, be careful. We have a brichardi "Kipilli" in on his own with our colony and he is slowly getting very reclusive and grumpy.
Ta
Mel