Fathead minnows are salesed as feeder fish. A selection called "rosy-red minnows" is usually the type marketed for fish tanks. If relied on in aquariums, they need to be in institutions of five or 6 or a single fish will come to be territorial as well as chase various other varieties of fish. Fathead minnows are likewise relied on as lure. You have actually most likely either seen a fathead minnow in an aquarium, or made use of or viewed one while fishing.
There have actually been numerous researches done with fathead minnows. Considering that they are hardy, and also duplicate in big numbers, they are also utilized as trial fish in studies to recognize the effects of chemicals on vertebrate animals. One was a research the impacts of low pH. While they made it through, they did act unevenly. They would be hyper. They would certainly additionally swim near the surface. And, they experienced some problems via breeding as their heads came to be smaller sized and also they lost some of their illumination. The eggs were additionally much less most likely to hatch. In an additional instance, when exposed to livestocks barnyard waste, men were feminized and also girls defeminized.