Common Carp

What you're looking at

The common carp (Cyprinus carpio) is the iconic UK coarse-fishing target — deep-bodied, hard-fighting, and capable of growing to specimen size in waters of all sizes. Anglers also encounter several human-bred variants of the same species: mirror, leather, ghost, and koi.

Key features

• Body: Deep, thick-shouldered, laterally compressed. Bronze-gold flanks, often coppery on the belly.
• Scales: Full uniform scaling on a "common", patchy/oversized on a "mirror", almost bare on a "leather".
• Mouth: Underslung, fleshy, protrusible — built for bottom feeding.
• Barbules: Two pairs around the mouth (four in total). This is a reliable feature that separates carp from crucian carp.
• Dorsal fin: Long base, with a serrated leading spine.
• Size: 4–14 kg routinely; UK record fish exceed 30 kg.

Confusion species

• Crucian carp: Smaller, deeper-bodied, no barbules, much shorter dorsal base. Convex dorsal profile.
• Ghost carp: Same species, dark dorsal half + pale lower half, often metallic head. A koi cross.
• Grass carp: Much longer/sleeker, head smaller, no barbules at all.
• F1 / hybrid carp: Shorter, scrappier — common in commercial fisheries.

Where to find them

Almost any UK still water above a couple of acres plus most rivers below the trout/grayling zones. Patrolling routes around margins, snags, weed beds and reed lines. Feed actively at dawn, dusk and through warm nights from mid-spring to late autumn.