I can't have ANY full size angel in my 125 gallon tank, and you keep asking about putting one in a 75 gallon tank. It's been said numerous times... DWARF angel. You can waste your money and buy two dwarfs, but when the sand settles, you'll most likely end up with one. Angels don't play nice together. Most site's descriptions specify having only one angelfish per tank. You can ignore the warnings and put two in your nano tank, but the chances of them getting along are extremely thin. I've tried on a couple of occasions to have two dwarf angels in my tank, and it hasn't worked out. I ignored the warnings, thinking 125 gallons is plenty big enough for two dwarfs. I ended up with two dead angels. Just because you see two or three not fighting in the tank at the LFS, it's only because they haven't been there long enough to establish their territory. I can assure you, one dwarf angelfish will claim your entire tank as it's territory. It will allow other species to share it's space, but will NOT tolerate another angel. Period. I previously suggested a dwarf angel and clownfish. If you want larger fish, these are the one's for your tank. You can have more than one clownfish, if you like. The best advice I can give you at this point is this: if you want bigger fish... get a bigger tank.
LOL...here is a picture to copy and have on hand for these moments
If Silverado is right, this picture of a nasty troll may be more appropriate.
I might use the first one but the troll is iconicly yours. Lol