I guess I am a little confused by your threads. Is this the same tank you are referring to regarding water changes and cycling in your other threads? Do you currently have ANY fish in that tank right now? If not, then your tank has not begun a cycle. The cycle WILL NOT start without a source of ammonia....this is what the fish provide or you provide it via a liquid ammonia addition to the tank everyday.

Back to this question....if you like fish that get along with each other, then just stick with community fish. Less hassle with worrying about compatibility. I have a 75g and setting up a 125g that will have nothing but guppys, platys, mollys, and swordtails. They all get along. The only downside to these fish (downside to some, positive for me) is they produce pretty fast. You just have to be prepapred for it, or just stick with all males - which are the most colorful of them anyway.