# Grass Carp (*Ctenopharyngodon idella*) The Grass Carp is a fish that loves to munch on water plants. They help keep our lakes and ponds clean! - **Category:** [Fish](https://www.snappit.app/explore/categories/fish) - **Rarity:** Common - **Danger:** 2/5 · Low - **Snaps:** 2 - **Habitat:** Ponds and lakes - **Also known as:** Grass Karp, White Amur ![Grass Carp](https://res.cloudinary.com/drieglelr/image/upload/v1771426869/objects/4684.jpg) ## Appearance The Grass Carp has an elongated, torpedo-shaped body with a greenish-brown to silvery-gold back and lighter belly. Its large, distinct scales give it a somewhat armor-like appearance, differentiating it from common carp by its lack of barbels. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Chordata - **Class:** Actinopterygii - **Order:** Cypriniformes - **Family:** Cyprinidae - **Genus:** Ctenopharyngodon ## Interesting facts - A single female Grass Carp can lay hundreds of thousands of eggs in one spawning season! - Despite being called 'carp,' they are more closely related to minnows than common carp! - They are used by people to naturally clear weedy waterways without any chemicals! - They were first brought to the U.S. in 1963 to help control nuisance aquatic weeds. ## Special abilities - **Aquatic Gardener:** Grass Carp can efficiently clear dense aquatic vegetation because of their powerful, specialized pharyngeal teeth that help them grind tough plants. - **Rapid Grower:** Grass Carp has a very fast growth rate that helps them quickly reach a large size, making them less vulnerable to predators. - **Streamlined Swimmer:** Grass Carp can navigate varied water conditions and strong currents because of their powerful, streamlined body, helping them find food. ## Measurements & details - **Length:** 60-120 cm - **Weight:** 10-45 kg - **Lifespan:** 5-15 years - **Swim Speed:** 20 km/h - **Maximum Depth:** 15 m - **Water Type:** Freshwater ## Diet & Feeding These fish are big plant-eaters, helping to keep watery areas clear of too many weeds! - **Age differences:** Young carp may eat small invertebrates, but quickly shift to an almost exclusively plant-based diet. - **Primary Foods:** Submerged aquatic plants, Emergent aquatic plants, Filamentous algae, Duckweed - **Foraging Method:** Grazing ## Ecological connections - **Depends on:** Humans (*Homo sapiens*) — for aquatic weed management. - **Eaten by:** [Largemouth Bass](https://www.snappit.app/explore/largemouth-bass) (*Micropterus salmoides*) — young carp are prey for larger fish. - **Eats:** Broadleaf Cattail (*Typha latifolia*) — consumes leaves and shoots of this plant. - **Eats:** [Longleaf Pondweed](https://www.snappit.app/explore/longleaf-pondweed) (*Potamogeton nodosus*) — grazes on various submerged plants. - **Eats:** [Hydrilla](https://www.snappit.app/explore/hydrilla) (*Hydrilla verticillata*) — helps control this invasive weed. ## Traits - [Wildlife](https://www.snappit.app/explore/traits/wildlife): Wildlife encompasses all undomesticated animal and plant life existing in their natural habitats. - [Social](https://www.snappit.app/explore/traits/social): Social animals live in organized groups, cooperating for survival benefits such as foraging, defense, and raising offspring. - [Filter Feeder](https://www.snappit.app/explore/traits/filter-feeder): Filter feeders obtain nutrients by straining suspended food particles and small organisms from water. - [Herbivorous](https://www.snappit.app/explore/traits/herbivorous): This trait characterizes organisms whose diet consists entirely or primarily of plant material. - [Freshwater](https://www.snappit.app/explore/traits/freshwater): Freshwater habitats include non-saline aquatic environments such as rivers, lakes, ponds, and wetlands, vital for numerous species. - [Aquatic](https://www.snappit.app/explore/traits/aquatic): Aquatic habitats encompass environments where organisms live predominantly in water, including oceans, rivers, lakes, and wetlands. ## Collections - [Fish](https://www.snappit.app/explore/collections/fish) ## Safety **Danger:** 2/5 · Low Watch quietly from a distance and never try to feed or chase wild animals. ## Frequently Asked Questions ### How to identify Grass Carp? Look at body shape, where the fins sit and their outline, mouth position, stripes and spots. Young fish and breeding adults can wear different patterns, and aquarium color varieties can look nothing like wild fish. Fish Identifier: upload a photo and compare the visible details. ### How long is Grass Carp? 60-120 cm ### How much does Grass Carp weigh? 10-45 kg ### How long does Grass Carp live? 5-15 years ### What does Grass Carp eat? These fish are big plant-eaters, helping to keep watery areas clear of too many weeds! ### How fast can Grass Carp swim? 20 km/h ### Where is Grass Carp usually found? Ponds and lakes ### How does Grass Carp hunt? Grazing ## Where to spot - [Greenfield Courthouse Square Historic District](https://www.snappit.app/guides/places/greenfield-courthouse-square-historic-district) — Indiana, US · Historic District - [Lewis Ginter Botanical Garden](https://www.snappit.app/guides/places/lewis-ginter-botanical-garden) — Virginia, US · Botanical Garden ## More Fish - [Rainbow Trout](https://www.snappit.app/explore/rainbow-trout) (*Oncorhynchus mykiss*) - [Brown Trout](https://www.snappit.app/explore/brown-trout) (*Salmo trutta*) - [Brook Trout](https://www.snappit.app/explore/brook-trout) (*Salvelinus fontinalis*) - [Lake Trout](https://www.snappit.app/explore/lake-trout) (*Salvelinus namaycush*) --- Source: [Grass Carp: Characteristics, Facts & Places to See — Snappit](https://www.snappit.app/explore/grass-carp)