Hi jmm197
I would go to a store you trust, and watch their angel tanks for a good 20 mins or so..by doing that, you will see what angels seems to school together and get along...I would then pick out 2-4 angels that seem to stick together....acclimating them is the hardest lately..test the water in the bag you bring home for
pH..then test your tank....if theres a huge difference, spend longer time drip acclimating them ..ph shock is a huge issue with angels....give them lots of cool big leafed plants (silk or real) to have to hide and such in, and let them be...even if you get 2 pair, in a 55g with allot of different plants, you should be able to be fine with them...after a couple months, you can stock a nice school of cories ...good luck!