Fish Active during the day

Alabama Hog Sucker

Hypentelium etowanum

iNaturalist Wikipedia

A master of the riffles, the Alabama Hog Sucker uses its specialized 'vacuum' mouth to navigate the rocky currents of the American Southeast.

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Quick Identification

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Size

Typically 15-25 cm (6-10 inches) in length; weighs approximately 0.1-0.4 kg (0.2-0.9 lbs)

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Colors

Mottled olive to bronze-brown upper body with four prominent dark dorsal saddles; belly is creamy white or yellowish; fins often show an orange or reddish tint.

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Key Features

Distinctly concave head between the eyes
Four dark 'saddle' bands across the back
Fleshy, downward-facing suction mouth
Large, fan-like pectoral fins used for bracing against current

When You’ll See Them

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Activity pattern Active during the day

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Peak hours 9 AM - 5 PM

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Season March-July (Spawning and peak activity)

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Diet Benthic insectivore that eats aquatic insect larvae (mayflies, caddisflies), small crustaceans, and mollusks by vacuuming them from the underside of rocks.

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Habitat Clear, fast-flowing streams and small rivers with gravel, cobble, or rocky substrates.

public Geographic range

Where Does the Alabama Hog Sucker Live?

Native to the North American continent, the Alabama Hog Sucker is a regional specialist of the Southeastern United States. Its core range is centered within the Mobile River basin, covering a significant portion of Alabama and extending into the Tennessee and Chattahoochee River drainages. This species is commonly found in the Appalachian foothills and Piedmont regions of Georgia, eastern Mississippi, and southern Tennessee, where it favors the clean, upland waters of the Gulf Slope.

Basemap © OpenStreetMap contributors

1 Countries

120K km² Range

Least Concern Conservation

US United States

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iNaturalist / Verified observation data

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Behavior

The Alabama Hog Sucker is a highly specialized 'bottom-feeder' that thrives in the turbulent waters of rocky stream riffles. Unlike many fish that swim constantly, this species often rests on the stream bed, using its large, sturdy pectoral fins like kickstands to anchor itself against the rushing current. They are solitary foragers but can occasionally be found in small groups where food is abundant.

These fish are known for their unique 'rooting' behavior. They use their hardened snouts to flip over small rocks and gravel, creating a localized disturbance that flushes out hiding invertebrates. Because they are sensitive to siltation and water quality, their presence is often a good indicator of a healthy, oxygen-rich aquatic ecosystem. While generally shy, they are fascinating to observe as they methodically vacuum the substrate.

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Camera Tips

To capture the Alabama Hog Sucker, you will need a waterproof action camera or a specialized underwater housing. Placement is critical: look for 'riffles,' which are shallow sections of the stream where the water ripples over rocks. Position your camera in the transition zone where the fast water begins to slow down into a deeper pool (the 'pool tail'). Secure the camera to a heavy flat rock using a mount or a weighted sandbag to ensure the current doesn't sweep it away.

Set your camera to a high frame rate, such as 60fps or 120fps. The Hog Sucker’s movements, especially when flipping rocks or darting between crevices, are incredibly fast; slow-motion playback will allow you to see their specialized feeding mechanics in detail. Aim the lens slightly upward from the bottom to capture the 'saddle' markings on their backs, which are their most distinctive feature from an aerial view but look striking from a side-profile underwater.

Lighting is your best friend when filming underwater. Try to set your camera during the middle of the day (10 AM to 2 PM) when the sun is directly overhead to penetrate the water column. If the water is slightly murky, place the camera closer to a 'feature' rock where you see algae growth, as Hog Suckers will likely visit that specific spot to forage. Avoid using artificial lights as they can cause heavy backscatter from suspended particles in the water.

Similar Species

Species that look similar or are commonly confused with Alabama Hog Sucker.

Northern Hog Sucker

Grows larger and lacks the deeply concave space between the eyes found in the Alabama species.

Blacktail Redhorse

Has a more traditional fish shape without the 'saddled' back markings and features a distinct black stripe on the lower tail fin.

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Frequently Asked Questions

Alabama Hog Suckers are primarily diurnal, meaning they are most active during daylight hours. They rely on their vision to spot movement and forage for insect larvae among the rocks when sunlight penetrates the water.

The best way to attract them is by maintaining a natural, healthy stream environment. Avoid removing large rocks or gravel from the stream bed, as these provide their primary foraging grounds. Ensure no garden chemicals or excessive silt runoff enters the water, as they require high water clarity to thrive.

They are insectivores that focus on 'benthic' (bottom-dwelling) life. Their diet consists mostly of immature aquatic insects like mayflies, stoneflies, and caddisflies, which they suction up after flipping over small stones with their snouts.

They can be found in suburban areas if the local streams remain clear and have a rocky bottom. However, they are very sensitive to urban runoff and siltation, so they are often absent from heavily developed areas where streams have sandy or muddy bottoms.

The Alabama Hog Sucker has a more pronounced 'dent' or concave area between its eyes compared to the Northern Hog Sucker. Additionally, the Alabama species is generally smaller and its range is restricted to the Mobile and Chattahoochee basins, whereas the Northern variety is much more widespread.

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