Siamese Algae Eater
Crossocheilus oblongus
Check Siamese Algae EaterThe Siamese Algae Eater is one of the few fish that will consume black beard algae, making it an invaluable member of any planted tank cleanup crew. They are active, social fish that do best in groups and can grow to around 15 cm. While peaceful as juveniles, they may become somewhat territorial with age, so provide plenty of swimming space.
Tank Size
80 liters
Temperament
Peaceful (can be boisterous)
Diet
Omnivore — algae, sinking pellets, blanched vegetables, flakes
Lifespan
8-10 years
Water Temp
22-26°C
pH Range
6.0-7.5
Recommended Products
Everything you need to create the perfect tank for your Siamese Algae Eater.
Accessories
Seachem Prime Water Conditioner
Siamese Algae Eaters are active, large fish that produce significant waste. Prime handles every water change safely and detoxifies ammonia, which can build up quickly in tanks where SAEs are kept alongside the plants and algae they help control.
Filters
Fluval AquaClear 50 Power Filter
Siamese Algae Eaters reach 15 cm and need 50+ gallon tanks with strong filtration. The AquaClear 50 handles the bioload of these active fish and provides the moderate current they prefer. Multi-stage filtration keeps the water clear for better algae visibility.
Food
Hikari Algae Wafers
Spirulina-based wafers that supplement the natural algae diet of Siamese Algae Eaters. As the tank matures and algae becomes scarcer, these wafers provide essential plant-based nutrition. Soften gradually, allowing SAEs to rasp on them throughout the day.
Hikari Tropical Sinking Wafers
Sinking wafers providing balanced nutrition to supplement the algae diet. Siamese Algae Eaters grow to 15 cm and have substantial nutritional needs beyond algae alone — these wafers ensure they stay well-fed and focused on algae removal.