My first concern about adding them was they looked like a predator of smaller fish. The little info I can find states they feed primarily on insects, benthic organisms, and possibly fish eggs. They seem no different then any other minnow type in that aspect and don’t grow large enough to run off any bedding sport fish. I think these are overlooked or not noticed by most fishermen or pond owners. I wonder if they could replace the fathead minnow in southern ponds as forage and bait.

I did use a few gambusia as bait and caught tiny LMB but I would assume these killifish would take down a wounded minnow if given the chance.