Hey i posted a topic before about keeping some lake.T in a 30 gal and have changed my mind, can i keep a L.calvus with 4 yellow labs and maybe something else???
I wouldn't add the Tret. The Calvus and the Yellow labs will fill up the tank nicely. How about some bottom feeders to go with them? A few Synodontis Petricola catfish would work great.
I mean the one Calvus and 4 yellow labs would be enough. I would not put any Tanganyikan pair in that tank, unless it is instead of the labs. You can do the 2 Julis and the Calvus no problem.