I've owned CRS shrimp, with bamboo shrimp, and Otos in a 10 gallon. I've owned RCS shrimp, Ember tetras, and Otos (this was before the CRS srhimp and bamboo shrimp) in the same 10 gallon. I have some 6 year old goldfish. I used to have a blue dream shrimp tank, but I gave them to a friend. I...