I have kept 2 Angels with my 10 neons for about 6 months now and IME you CAN keep both species, providing there is plenty of hiding spaces for the neons (kept in a 40G with plenty of plants). The other time i bought some neons they got eaten by some other inhabitant, i'm thinking loaches, but nothing verified. I also have some Espei Rasboras in there and havent lost a single one :icon_smil