Popular mid and bottom-dwelling fish include:

Popular bottom-dwelling fish include:
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We cover all the big game out there; Blue catfish, Flathead catfish, Alligator gar, and any other big game you are out to catch! Browse the Bottom Dwellers Tackle shop and let us know what we can do to help!
What does it mean to be a bottom dweller fish?
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There are three general locations of the mouth in fish which often indicate the species's feeding habits. Surface feeding fish usually have an undershot, upturned (superior) mouth for feeding on insects. Fish that feed in mid water have a terminal mouth, which is usually considered the "normal" fish mouth. Predatory fish usually have a wide mouth, while omnivorous fish have smaller mouths. Bottom feeding fish generally have an underslung or inferior mouth. Often, bottom feeding species are also equipped with barbels ("whiskers"), which are tactile and taste organs used for locating food in dark or muddy waters. Some bottom-dwelling fish, especially the Loricarids, have a suction-cup like mouth for rasping on algae, wood, plants, or mud (for small invertebrates). Surface-dwelling fish are more likely to be contaminated by plastic than bottom-dwellers. Photo by Gary Bell/Corbis
Photo provided by FlickrWhat bottom dwellers can join them? Would crayfish harm them, or would they when the fish get bigger?
Photo provided by FlickrGhost shrimp bottom dweller, can live with tropical fish until grown into adults, then they'll need to live alone or with larger fish.
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The body shape is one of the best indicators in determining the fish's environment. Surface dwelling fish have an upturned mouth, a flattened back. Tall bodied, laterally compressed species like Discus and Angelfish, are adapted to life in slow-moving waters. Slender, torpedo shaped fish are better adapted to moving waters. Bottom-dwelling fish have flattened bellies and inferior mouths. Some bottom-dwellers have altered swim bladders so they "hop" along the substrate instead of swimming.September 22, 2009—UPDATE: A gelatinous fish found off Brazil's Bahia coast has been touted as a previously unknown species. But the six-foot-long, toothed oddity may be a known member of a group of mysterious bottom-dwellers known as jellynose fish, another expert says.The paired pectoral fins are located near the gill cover and are used for maneuvering the fish. These fins have been adapted, in the case of some bottom-dwelling species, so fish can prop themselves up or even walk around above or below water. Sometimes the pectoral fins are equipped with spines for defense.Dredges are large, metal-framed baskets that are dragged across the seafloor to collect shellfish like oysters, clams and scallops. In order to lift the catch into the basket, metal teeth dig into the seafloor, which can significantly impact seafloor habitat and bottom-dwelling species. Dredging also results in high levels of bycatch. By restricting dredging areas, bycatch and damage to seafloor life can be reduced.A bottom trawl is a type of fishing net that's pulled along the seafloor. Fishermen commonly use bottom trawls to catch shrimp and bottom-dwelling fish like halibut and sole. However, in addition to these target fish, the nets also catch a variety of ocean life that's usually thrown back dead or dying. Dragging heavy gear across the seabed can also damage sensitive seafloor habitat. The harmful effects of bottom trawling on bottom-dwelling organisms and their habitat can be reduced by modifying the fishing gear or limiting trawling areas.Scooter blennies obviously scoot Sand-shifting gobies are also good bottom dwellers, but I'd stay away from them since they completely decimate your sandbed life. Blennies are good choices for bottom dwellers. Some nice ones IMO are Bicolor Blennies, Midas Blennies, and Altosalarius fuscus (not sure the common name). Hawkfish also sit on the floor for most of the time. They're good choices if you don't have shrimps. I love flame hawks.