🐟 Chinese Algae Eater (Gyrinocheilus aymonieri)
🐟 Chinese Algae Eater (Gyrinocheilus aymonieri)
Freshwater Bottom-Dwelling Algae Grazer (Juvenile) • Genuinely Becomes Territorial and Aggressive With Maturity — Please Read Before Buying
⚠️ Important Information — Please Read First
We want to be genuinely direct on this one, since it's a fact many retailers skip over. While juveniles are genuinely excellent, hardworking algae grazers, this species is well-documented to become territorial and aggressive as it matures, often latching onto slower, flat-bodied fish — Angelfish and Goldfish being commonly named examples — to feed on their slime coat, which can genuinely lead to stress, scale damage, and infection risk in the affected fish. This species also grows considerably larger than its juvenile size suggests, up to 25-28cm.
📋 The Chinese Algae Eater has a slender, golden-brown to gray body with a dark lateral stripe, and a specialized sucker-mouth adapted for clinging to surfaces in fast-flowing streams.
Given its genuine behavioral shift with age, this species is best paired with robust, active, fast-moving tank mates rather than slow or delicate fish, and is typically best kept singly rather than in groups, since multiple adults can also become territorial toward each other.
🟤⚠️ Highlights
🌿 Genuinely Excellent Algae Grazer While Young: Efficient on glass, rocks, and décor
⚠️ Genuinely Becomes Aggressive With Age: Will target slow, flat-bodied fish
📏 Genuinely Grows Large: Up to 25-28cm, please plan tank size accordingly
✅ Genuinely Hardy & Long-Lived: Up to 10-12 years with proper care
🏠 Best Kept Singly: With robust, fast-moving tank mates
🧾 A Quick Look at the Chinese Algae Eater
📛 Common Name: Chinese Algae Eater (Sucking Loach, Honey Sucker)
🔬 Scientific Name: Gyrinocheilus aymonieri
👨👩👧 Family: Gyrinocheilidae
🌍 Origin: Southeast Asia (Thailand, Cambodia, Vietnam, Laos)
📏 Max Size: Genuinely 25–28 cm (10–11")
🧂 Water Type: Freshwater
🌡️ Temperature Range: 23–27°C (73–81°F)
🧪 pH Range: 6.5–7.5
🧠 Care Level: Easy — genuinely hardy, but demands honest tank-mate planning
💖 Temperament: Peaceful as a juvenile; genuinely territorial and aggressive as an adult
🏠 Min Tank Size: 210 L (55+ gallons) for a single adult
📌 Tank Level: Bottom Dweller
🧬 Stock Type: Wild-collected as standard stock
⏳ Lifespan: Genuinely 10-12 years with good care
🍽️ Diet: Omnivore — algae and biofilm when young, meatier foods as it matures
🐣 Reproduction: Genuinely uncommon in home aquariums

















