OK,a few things Yves9,Microgeophagus altispinosus and Microgeophagus Ramirezzis are two different fish,from two different places.The Bolivian ram is obviously from Bolivia while the blue ram is from the Colombian and Venezuelan llanos.
It's true that blue rams are more delicate than bolivians,but it's also true that only people who are experienced and know about them and their needs should keep them.If yours died and you don't even know from what,is a clear indication that you haven't got a clue.
Cla55y19...Bolivians are very cool fish,as most dwarf cichlids are.You would have tons of fun with them,just let us know how they are doing.