Sounds exactly like my 75g. I have 3 marbled angels, 14 neon tetras, 11 rummynose tetras, 2 Bolivian rams, 1 kribensis, 1 curvicep cichlid and a bristlenose pleco.
So far the angels haven't bothered any of the tetras. The angels are about 5 inches long now and I added them when they were maybe an inch long. Everyone gets along great in the tank.
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