I had a 30 gallon tank for three years, with 1angel, 2cories, and two tetras? I believe. Was given a 55, added 1small angel, 1 electric blue ram, and 3 small cories. It’s been about 3 weeks since adding the new fish and everyone seems to be doing fine.... Wondering how close I am to capacity? I’d love to get a schooling fish that’s comparable to brighten the tank up a bit. Looking for suggestions that work with my setup. Also, could I add another ram or possibly krib? As I’ve read they’re good companies with the angels.