My brother and I are planning a 180G tank and we are kind of running into a stumbling block as to what kind of fish we want. He would like to get various African Cichlids where I would prefer Angels and some less common fish like a Black Ghost Knife. There will also be a Pleco and 3 Pictus cats moved into the tank from one of my other tanks. Would it be possible for these types of fish to co-exist? Then the other issue would be plants. From what I have kind of read the Cichlids don’t need a planted tank as much as the Angels and other fish might. Would there be anyway to pull both our ideas together?