As noted in that response of mine that you quoted, look at barbs and danios, and also some of the tetra (characins) can work. Of course, livebearers
You mention black ruby barbs with the Firemouth and similar cichlids...
What other school fish would you recommend? They need to be big bodied
I like both the bristlenose and the otocinclus. The only problem is that i've only seen bristenoses at the fish shops I have looked at. However I am planning
If that were my tank, I'd add a single female krib. They are much prettier than the gouramis imo. But if you want to see interactions, then the gouramis
I agree that a nice school of small fish is a great centerpiece for a tank, and it tends to be more appropriate for the smaller tanks.