I'm considering adding some bolivian rams to a 38 gallon(36x12x20) planted tank containing two non mated angels, around 15 cardinal tetras, and 5 otto's. I've kept bolivian rams in the past but not with these tank mates. Nor at the higher temperature of around 80-81 degrees which the angels and cardinals seem most comfortable in and i'd rather not mess with it. With that said would bolivians fare ok here? Would 4 be pushing it stocking wise? Two would be cool but i like the behaviour of a group.