yes, the fish don’t know geographical regions… that is something in our minds… my “south American tetra” tank, for example… the fish may come from a dozen areas, but in my mind, it defines those fish, and I try not to put Asian fish or African fish in that tank…
back to Africa, the challenge has been a “catfish” of sorts to clean the bottom, or the glass, as there are regions within the tank, that I look for fish to fill… research says there are African gara, those just really aren’t in the hobby, and most african catfish are too large ( wouldn’t it be great if there was an African Cory species easily available, or an algae eating pleco species )… that tank is one of my hardest to work on, so that tank has elements to make it require less maintenance, dark water, highly shaded, to control algae growth, and larger substrate, for examples… sitting here sipping my cafeine, I can get a taste of Africa, south America, and Asia in 3 tanks next to each other, and while they are not biotopes, I am at least true to those continents, with the fish within each tank… because of availability, I actually have 3 multi-species south American tanks, needed, both because of the variety of fish, but also because they wouldn’t all thrive in the same aquarium, unless it was huge…
3 cichlid species may be too many for the African tank, but hopefully the species chosen, can be made to thrive in close proximity to each other…
the blues are looking good today, swimming around more freely… likely the negative attention they were originally getting had more to do, with the others being established, and them being the new guys, than them being species that wouldn’t tolerate each other… but my earlier south American cichlid tank did not turn out well, so time will tell if my choices work out…