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Chinese Algae Eaters - Proper Care & Tank Setup

Brief Description

This guide offers detailed information on raising Chinese Algae Eaters, from tank setup to behavior and breeding challenges. If you have questions or wish to share your experiences, use the form at the bottom of this page. You can also visit our dedicated profile for this species: Chinese algae eater - Gyrinocheilus aymonieri profile, featuring contributions from other aquarists.

Introduction to Chinese Algae Eaters

The Chinese Algae Eater (Gyrinocheilus aymonieri), sometimes referred to as the "Indian Algae Eater" or "Sucking Loach," is often mistaken for the Siamese Algae Eater due to its similar appearance. Despite its common name, this species is not native to China but originates from northern India and central Thailand. It's not a true loach either, although it shares some characteristics with that group.

In their youth, Chinese Algae Eaters are diligent cleaners, quickly removing algae from every surface in the tank. They can often be seen gliding along the glass, rocks, and decorations, tirelessly consuming algae. However, as they mature, their dietary preferences shift toward meatier foods, and they may become more aggressive, often targeting other fish, particularly those with broad, flat sides. In the aquarium, they typically reach a size of 20 - 28 cm (7.87 - 11.02 inches).

Ideal Aquarium Setup for Chinese Algae Eaters

Mature G. aymonieri are territorial and require ample space to establish their territory. A minimum of 25 gallons (95 liters) is recommended, though larger tanks are preferable to accommodate their growth and territorial nature. Include plenty of hiding spots using rocks, caves, and dense plantings to provide shelter and reduce stress. These fish will spend most of their time attached to surfaces using their specialized mouth, which also helps them navigate fast currents in their natural habitat.

In the wild, Chinese Algae Eaters inhabit fast-moving rivers and streams in northern India and central Thailand. Their disk-shaped mouths allow them to suction onto surfaces and resist being swept away by the current. Replicating these conditions in the aquarium with a moderate water flow can help them feel at home. Keep the water conditions stable, with a pH range between 6.0 and 8.0, and a temperature of 72-82°F (22-28°C). They are adaptable to various water conditions but thrive best in a well-maintained environment.

Despite their algae-eating reputation, mature Chinese Algae Eaters often develop a taste for meaty foods and may prey on other fish if not adequately fed. They can latch onto the sides of tank mates, potentially harming them and stressing the entire tank community. It's crucial to provide a varied diet that includes algae wafers, vegetables, and protein-rich foods to keep them satisfied and reduce their tendency to harass other fish.

Sexing Chinese Algae Eaters

Distinguishing between male and female Chinese Algae Eaters is challenging. One theory suggests that males are slimmer than females, who may appear plumper, especially when ready to spawn. However, there is limited evidence to support this theory conclusively for this species. Generally, sexing them based on physical appearance alone is unreliable.

Breeding Challenges of Chinese Algae Eaters

Breeding Chinese Algae Eaters in captivity is rare and not well-documented. Most reported spawnings are accidental, with hobbyists unable to replicate the conditions successfully. Optimal breeding conditions, including specific water parameters and environmental triggers, remain largely unknown. Currently, the aquarium trade relies on wild-caught specimens to meet the demand for this species. Their complex breeding requirements make them less suitable for aquarists interested in breeding their fish.

Compatible and Incompatible Tank Mates

Chinese Algae Eaters can be kept with certain species that can handle their occasionally aggressive behavior. Compatible tank mates include:

However, they are not suitable for tanks with smaller, slower, or more delicate fish. Avoid keeping Chinese Algae Eaters with:

Their tendency to latch onto the sides of slow-moving or flat-bodied fish can lead to stress, injury, or even death, making it essential to choose their tank mates wisely.

Pictures

Two pictures were provided by pitugo.

Chinese algae eater, picture 1 Chinese algae eater, picture 2 Chinese algae eater, picture 3 Chinese algae eater, picture 4 Chinese algae eater, picture 5 Chinese algae eater, picture 6 Chinese algae eater, picture 7 Chinese algae eater, picture 8 Chinese algae eater, picture 9 Chinese algae eater, picture 10

Sources

  • The Encyclopedia of Aquarium Fish by Dick Mills
  • The Ultimate Aquarium by Mary Bailey and Gina Sandford

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