lake tanganyika, lake malawi

[Tanman]

just wondering.........

i have a 77gal lake malawi tank and a 38 gal lake tanganyika tank
i wanted to add some flow to it (kinda like my reef tank) with some power heads. any suggestions or comments?????? thinking of a 301 for both.
i know lakes are pretty calm, but i thought that it might be a good idea to get some water movement (creek entering the lake). any thoughts? opinions? thanks in advance