They reside in pools, rivers, lakes, as well as reservoirs. They favor warm and comfortable bodies of water with little to no current. Because they are bottom fish, they like a wealth of cover from immersed trees or aquatic plants.
As bottom feeders, their favored food is snails, yet they also consume various other shelled creatures. Their thick, hard teeth enable them to squash the skeletons of shelled pets. These teeth go to the back of their mouths, as well as enable them to run like a nutcracker by squashing the shells of snails, for this reason the nickname, "shellcracker". They can even open small clams. They will certainly also consume larvae, fish eggs, and crayfish. Due to its specialized meals specific niche, Redear sunfish could live lakes without competing for the very same meals of fish that prefer surface area feeding. And also since snails can spread out disease, and also since snails are just one of Redear's favored foods, these fish are relied on in lake administration tasks to control snails.