Discus would be really cool in that tank, but they aren't exactly reccomended if you are new to the hobby.
I have heard bad things about pictus catfish.
Honestly whether it's a 120 gal or 180 gal, with this list- before you consider other fish, you can easily think of stocking within the list that you have, by increasing the numbers of your schooling fish.
Also, it's kind of funny because all of the fish that you listed are all from the same region (South America).. except for the dwarf gourami's (which are from Asia).
But if you aren't concerned with being "geographically accurate" then that will expand your options even further (in addition to your tank size lol).
That entire list sounds really good, other than as I and others have said expanding your schooling fish numbers.
Honestly, if I had tank that size, and were stocking it as a community style tank, then I would get Rainbowfish.
Look them up, I guarantee that there a more than a few species that would catch your eye, and that are probably readily available at your lfs.
Hope this helps at least a little bit!
I have heard bad things about pictus catfish.
12-15 Cardinal Tetras
8-10 Black Neon Tetras
3-5 Diamond Tetras
6-8 Rummynose Tetras
6-8 Glowlight Tetras
4-6 Sterba's Cory
4-6 Otocinclus
2 Blue Ram Cichlid
2-4 Dward Gourami
1 Queen Arabesque Pleco
Honestly whether it's a 120 gal or 180 gal, with this list- before you consider other fish, you can easily think of stocking within the list that you have, by increasing the numbers of your schooling fish.
Also, it's kind of funny because all of the fish that you listed are all from the same region (South America).. except for the dwarf gourami's (which are from Asia).
But if you aren't concerned with being "geographically accurate" then that will expand your options even further (in addition to your tank size lol).
That entire list sounds really good, other than as I and others have said expanding your schooling fish numbers.
Honestly, if I had tank that size, and were stocking it as a community style tank, then I would get Rainbowfish.
Look them up, I guarantee that there a more than a few species that would catch your eye, and that are probably readily available at your lfs.
Hope this helps at least a little bit!