Bigeye Chub

Capturing the Bigeye Chub requires an underwater setup, such as a waterproof action camera or a trail camera housed in a specialized aquatic enclosure. The best placement is in a 'run' or the tail-end of a pool where the water is 12 to 24 inches deep and the bottom is composed of clean gravel. Position your camera on a weighted base or a small tripod, keeping the lens approximately 4 to 6 inches above the substrate and angled slightly toward the center of the stream to capture the fish in profile.

Lighting is the most critical factor for these silvery fish. Aim to record during peak daylight hours when the sun is directly overhead. This allows light to penetrate the water surface and highlight the iridescent scales and the characteristic dark lateral stripe of the Bigeye Chub. Avoid areas with heavy tree cover that create high-contrast shadows, as these can confuse the camera's auto-exposure and make the small fish appear as mere silhouettes.

To attract a school to your lens, you can use a technique called 'chumming the current.' Place a small mesh bag containing crushed fish flakes or freeze-dried bloodworms just upstream of the camera's field of view. As the scent and tiny particles drift down, the chubs will naturally congregate in the 'sweet spot' in front of the lens. Alternatively, simply turning over a few large rocks upstream can release natural larvae into the current, triggering a feeding frenzy that makes for excellent video footage.

Because these fish move with very quick, darting motions, standard motion-trigger settings on trail cameras may be too sluggish, resulting in videos of empty water. It is highly recommended to use a 'time-lapse' mode with a 5-10 second interval or a 'loop recording' function if your battery life allows. If using a motion trigger, set the sensitivity to the highest level and the video length to at least 20 seconds to ensure you catch the school as they enter and exit the frame.