I have a 75 gallon tank that was going to be a US native tank but I decided to go back to my original plan which is a tropical tank with angels being the focus. I am however kinda stumped on what to get for tank mates. My mom would like to see a nice community tank which would be cool but I am always in love with some predator oddball. Any suggestions or what has worked for you guys? I was thinking of doing swords or rainbows with either an african butterfly fish or maybe some kind of small eel. my tank has sand bottom with a mix of small pebbles with a few rocks along with lots of hide spots from drift wood and my plants are all bulbs (was going to do a sunfish tank). Filtration is via sponge filter.