I want to thank every one for their input, But we seem to have hit our first stumbling block, Marilyn isn't happy with the chasing she sees in the new tank, she says she wants the Blue Acaras out because they are to bossee, they do push the angels around, but all the other fish seem to be fine together, I suggested moving the angels back to the 36 gallon but she doesn't agree. So my question is stocking the tank around the Severums what could we add and have very little or no chasing ????????????????