I would do a Thorichthys tank with swordtails and some other Mexican cichlids, this is what I’m doing in my 125. I would also do a SA tank if you have soft water with severums, geos, flagtails and some silver dollars. What are you into as you have a lot of options and I could go on for days on what you could do? Also I thought you were doing an oscar
I'm getting a black background added on to the custom made tank I'm having to go with my black sand, hopefully it looks ok, didn't fancy the dark blue background, if I don't like the black Im gonna just buy a cheap 3d background and silicone it in