Incredible Pictures there. I remember keeping some Pseudotropheus Zebra and Labidochrmois Caureleus and was amazed at the aggression for such small fish, they would anything, the Cnetral American Cichlids that I kept for years were great fun but for entertainment value and constant movement the Malawais are hard to beat, am really looking forward to spending an hour a day in front of a fish tank again. I am planning on mixing some Melanochromis and Pseudotropheus with some Nimbochromis in a 6 ft 8 inch by 24 inch by 24 inch tank with quite a bit of rock work, like that tank deisng with rocks at edge and open swimming in the middle looks very nice, still allows reffuge for fry too.