If your talking about the ADF { african dwarf frogs } Yes you can very well. I have 4 in with mollies , guppys, Apistogrammas 3 differnt spices, Ghost shrimp, bumblebee gobys, GBR's {german blue rams} and Kribs and also tetra's. The whole set-up is a peaceful community and lives n peace. Til the Kribs spwn whitch they do all the time. I have to frys in the wiggler stage now. The frogs want hurt anything in the tank.
But the frogs are quit famouns for being nippers. By nippers I mean thet nip the tips of the fish tail fins alot. Mine just nip the kribs becasue the kribs chase them when with fry. But anyway. Yes the frogs can be ket with the miollies.