The left tank is clearly the Tanganyika (Cyphotilapia), but all species I can see in the right tank are Malawi cichlids (Nimbochromis, Copadichromis, Labeotropheus/Pseudotropheus). However, there may be some Victoria's among the smallest/darkest that I can't ID with any level of certainty from this photo. Were there any species labels?
edit: just visited the Marine Life Park homepage and while they also use Tanganyika and Victoria as examples, it appears Tanganyika and Malawi would have been more fitting. In addition to the widespread tigerfish, the example species they list are Tanganyika and Malawi endemics, with a single odd one out (kribensis, a small West African cichlid that I doubt is present in either of these tanks as it would perish fast).
