Chinese Algae Eater - 2"

Species Profile

• Scientific Name: Gyrinocheilus aymonieri
• Common Name: Fancy Algae Eater, Chinese Algae Eater
• Adult Size: 6–10 inches (15–25 cm)
• Life Expectancy: 8–10 years, sometimes longer with good care
• Habitat: Native to Southeast Asia — found in rivers and streams of Thailand, Laos, Cambodia, and Vietnam. Prefers flowing waters with plenty of surfaces to graze algae on

Tank Requirements

• Minimum Tank Size: 50 gallons (190 liters) or larger, due to adult size and territorial behavior
• Ideal Temperature: 72–82°F (22–28°C)
• pH Range: 6.5–7.5
• Water Hardness: 5–15 dGH (soft to moderately hard)
• Temperament: Juveniles are peaceful but adults can become territorial and aggressive, especially toward similar species or other bottom dwellers

Diet & Nutrition

• Omnivorous: Yes
• Diet: Primarily algae and biofilm grazers but also accepts sinking pellets, vegetables (zucchini, cucumber), and occasional protein sources like bloodworms or brine shrimp. May become aggressive if underfed

Appearance

• Coloration: Juveniles often display a mottled or spotted pattern with shades of brown, black, and cream, called the “fancy” variety. Adults tend to darken and develop a more uniform brownish or grayish color
• Body Shape: Elongated and somewhat flattened ventrally, with a sucker-like mouth adapted for clinging to surfaces
• Fins: Rounded, often blending with body coloration

Distinctive Features

• Sucker mouth used for clinging to aquarium glass and rocks
• Fancy patterning in juveniles distinguishes it from the more plain Chinese algae eater (Gyrinocheilus aymonieri wild type)
• Known for algae control, but can become aggressive and territorial with age
• May outgrow smaller tanks quickly, requiring ample swimming space and hiding spots