TheCommunityCichlid
Aquarium Advice Addict
Ok you want facts just for an example
Firemouth cichlid (new world)
PH 7.0 - 8.0, Temp 73-78, size 6", semi aggressive
Labido Chromis (african)
PH 7.5- 8-5, Temp 74-80, size 5", semi aggressive
Are you telling me this wouldn't work perimeters are nearly the same.
I am not seeing any facts at all from your side ever. I want to see facts on why like tempered like sized fish with similar water perimeters cant work just because they are from different part of the world.
I am telling you it goes beyond one factor alone, if you don't believe go ahead and mix them in your tank and get back to me