Im looking at adding some marbled hatchet fish to my tank, its a 180l so was thinking of adding between 6-8.

My tanks got a fully sealed lid and a few floating plants so im pretty happy with that but i do have two golden wonder killifish that live at the surface. Does anyone have any experience in how the two would interact?

any other suggestions or advice is appreciated! not 100% decided on getting these fish yet, still doing my research