Though the water chemistry in Lakes Victoria, Malawi, and Tanganyika is different, Rift Lake Chemie provides a good basis in which cichlids and other fishes endemic to the distinct lakes may be successfully maintained. This is because it is formulated to provide the major elements in ratios derived from extensive water analysis surveys; it is therefore possible to maintain a mixed-cichlid community with water that has been prepared with Rift Lake Chemie. This supplement does not increase alkalinity, nor does it contain minor or trace elements important to long-term health and coloration of cichlids and their allies; used as directed, Brightwell Aquatics Rift Lake dKH and CichlidCode will accomplish these tasks.