The Siamese Algae Eater (Crossocheilus siamensis), also known as the Siamese Flying Fox or simply the SAE, is a popular freshwater aquarium fish valued for its ability to consume various types of algae. Siamese Algae Eaters are native to Southeast Asia and are known for their peaceful nature and algae-eating habits. Here are some key characteristics and information about Siamese Algae Eaters:
- Appearance: Siamese Algae Eaters have a streamlined body with a silver to gold coloration. They have a black horizontal stripe that runs along their body from the snout to the caudal fin, which is one of their distinguishing features. Their body shape is more streamlined compared to some other algae-eating fish species.
- Size: These fish typically grow to be around 5 inches (12.7 centimeters) in length when fully mature.
- Behavior: Siamese Algae Eaters are generally peaceful and suitable for community aquariums. They are known for their active swimming and strong schooling behavior, so it’s recommended to keep them in groups of three or more.
- Diet: Siamese Algae Eaters are highly valued for their efficient consumption of various types of algae, including green algae, black beard algae, and diatoms. While they primarily feed on algae, they may also accept supplemental foods such as high-quality sinking pellets, flakes, and blanched vegetables.
- Tank Setup: Provide a well-maintained aquarium with stable water conditions for Siamese Algae Eaters. Ensure the tank has plenty of hiding spots, rocks, and driftwood. They appreciate planted tanks with ample surface area for algae growth.
- Water Quality: Maintain stable water parameters with a pH between 6.5 and 7.5 and a temperature range of 75-79°F (24-26°C). Effective filtration, regular water changes, and the removal of copper-based medications are essential for their well-being.
- Compatibility: Siamese Algae Eaters are generally compatible with a variety of peaceful community fish species. However, they can sometimes display territorial behavior among themselves, so providing multiple hiding spots can help minimize aggression.
- Breeding: Breeding Siamese Algae Eaters in captivity is challenging and rare. These fish are often bred in large outdoor ponds in their native range, and their reproductive habits are not well-documented.
Siamese Algae Eaters are highly regarded in the aquarium hobby for their effective algae-eating habits and peaceful nature. They can help keep your tank clean and maintain good water quality by controlling unwanted algae growth. When keeping Siamese Algae Eaters, make sure to provide them with a suitable environment, a balanced diet, and the company of their own kind or compatible tankmates.

















Adam –
Shipping was on time, which is always appreciated with live animals. They arrived in clean water and were frisky! All good signs. After a 30-minute accumulation, I netted and introduced them to the bottom of the tank. They were off exploring and quickly made their rounds around the community. That is precisely how it should be—easy and fun processes with minimal stress. I know they look a little fat in the pictures, it was after feeding time!
Lili –
All fish arrived safely. Very well packed for their safety. This was first time I have bought fish via mail I was very happy with the results. Thanks!