mixing

I currently have 4 Bolivian Rams sharing my 45 gallon tank with a variety of Krebs. I'd like to add either German blues or Electric blues for more color diversity. Would there be any issues between them and the Bolivians? thanks

Another idea that I've been mulling over for the new fishroom is about the installation of a thermostatic mixing valve for use with an automatic waterchange system. Anyone have experience with thermostatic mixing valves?

Most Lake Victoria Cichlids can be mixed with African Cichlids from both their area and the other Lakes. There are a few exceptions, however. One issue with Lake Victoria Cichlids is that a number of their females look similar and if you mix both males and females you will likely get cross...