Siamese Algae Eater

Siamese Algae Eater
Latin name:
(Crossocheilus siamensis)

Care Level





Black, White



Preferred Conditions

75-79° F, KH 5-10, pH 6.5-7.0

Avg. Max Size


Minimum Tank Size



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Are you a fish enthusiast looking to add a new member to your aquatic family? Look no further than the Siamese algae eater, a fascinating and beneficial fish that will keep your tank clean and your fish happy. This guide will provide you with all the information you need to know about caring for this unique and helpful creature.

Siamese Algae Eater: An Overview

The Siamese algae eater, scientifically known as Crossocheilus siamensis, is a freshwater fish native to Southeast Asia. It is a popular choice for aquariums due to its voracious appetite for algae, which helps to keep the tank clean and healthy. Siamese algae eaters are also known for their peaceful nature, making them ideal tankmates for other fish.

Physical Characteristics

Siamese algae eaters have a long, slender body with a pointed snout and a pair of barbels near their mouths. They are typically olive green in color with a yellow stripe running down their sides. Males are generally larger than females and have a more pronounced hump on their backs.


With proper care, Siamese algae eaters can live for up to 10 years in captivity. However, their lifespan can be shortened if they are not provided with the right environment and diet.

Caring for Your Siamese Algae Eater

Siamese algae eaters are relatively easy to care for, but there are a few things you need to know to ensure their health and well-being.

Tank Size

Siamese algae eaters need a tank that is at least 20 gallons in size. However, a larger tank is always better, as it will give your fish more room to swim and explore.

Water Parameters

Siamese algae eaters prefer water that is slightly acidic to neutral, with a pH between 6.5 and 7.5. The water should also be soft to moderately hard, with a hardness of 5 to 15 dGH. The temperature should be kept between 75 and 80 degrees Fahrenheit.


Siamese algae eaters are primarily herbivores and will eat a variety of algae, including green algae, brown algae, and diatoms. They will also eat some vegetables, such as lettuce, spinach, and zucchini. It is important to provide your Siamese algae eater with a varied diet to ensure that they are getting all the nutrients they need.

Tank Mates

Siamese algae eaters are generally peaceful fish and can be kept with a variety of other fish. However, it is important to avoid keeping them with aggressive fish, as they may be bullied or even killed. Good tank mates for Siamese algae eaters include tetras, barbs, and rasboras.

Benefits of Keeping a Siamese Algae Eater

There are many benefits to keeping a Siamese algae eater in your aquarium.

Algae Control

Siamese algae eaters are voracious algae eaters and will help to keep your tank clean and free of algae. This can save you time and money on cleaning and maintenance.

Peaceful Nature

Siamese algae eaters are peaceful fish and will not bother other fish in your tank. This makes them ideal for community tanks.

Hardy Fish

Siamese algae eaters are hardy fish and can tolerate a wide range of water conditions. This makes them a good choice for beginners.


The Siamese algae eater is a fascinating and beneficial fish that can make a great addition to your aquarium. With proper care, your Siamese algae eater can live for many years and help to keep your tank clean and healthy.


  1. What is the best way to feed a Siamese algae eater?
    The best way to feed a Siamese algae eater is to provide them with a variety of algae, vegetables, and commercial fish food.
  2. How often should I clean my Siamese algae eater’s tank?
    You should clean your Siamese algae eater’s tank once a week or as needed. Be sure to remove any uneaten food and debris from the tank.
  3. What are some common diseases that affect Siamese algae eaters?
    Some common diseases that affect Siamese algae eaters include ich, fin rot, and dropsy. It is important to treat these diseases promptly to prevent them from spreading to other fish in your tank.