
Siamese algae eater
Crossocheilus langei
It grazes almost without a pause, rasping leaves, glass and driftwood.
The Siamese algae eater (Crossocheilus langei) is a tropical freshwater fish of the family Cyprinidae. It swims in midwater, close to the bottom. Adults grow to about 14 cm; the largest on record measured 14.5 cm (total length). In the aquarium it needs a tank at least 150 cm long and water at 22–27 °C.
- Size
- 14 cm
- Smallest tank
- 150 cm
- Temperature
- 22–27 °C
- Care
- Moderate
In the aquarium
Temperature22–27 °C
pH6.0–7.5
Hardness3–12 °dGH
- Temperament
- Peaceful
- Diet
- Herbivore
- Activity
- Busy
- Water layer
- Bottom
- Group
- Happiest in a group of 6 or more
- Plants
- Plant safe
These values are compiled from real species data, and the LumaReef simulation is built to keep them true to life.
Which tank it fits
- Nano60 cm · 65 litresToo small
- Standard90 cm · 180 litresToo small
- Wide120 cm · 300 litresToo small
- Living room180 cm · 650 litres46 of them
- Showcase250 cm · 1,200 litres85 of them
- Gallery300 cm · 1,440 litres102 of them
Who it lives with
Gets along79 species
- Bristlenose pleco
- Freshwater angelfish
- Swordtail
- Sailfin molly
- Giant danio
- Boesemani rainbowfish
- Scissortail rasbora
- Congo tetra
- Molly
- Dwarf gourami
- Bronze corydoras
- Black skirt tetra
- Diamond tetra
- Silver hatchetfish
- Pearl danio
- Tiger barb
- Dwarf chain loach
- Emperor tetra
- Zebra danio
- Cherry barb
- Platy
- Odessa barb
- Cardinal tetra
- Lemon tetra
Caution9 species
Narrow shared temperature range
Crowding the same layer
Not together11 species
Aggressive with peaceful
Water temperatures do not overlap
In the wild
- Water type
- Freshwater
- Climate zone
- Tropical
- Habitat
- Midwater, close to the bottom
- Largest on record
- 14.5 cmtotal length
Classification
- OrderCypriniformes
- FamilyCyprinidae
- GenusCrossocheilus
- SpeciesCrossocheilus langei
- Described byBleeker, 1860
Quick answers
- Siamese algae eater size: how big does it get?
- Adults reach about 14 cm. The largest on record measured 14.5 cm (total length). Record sizes among the 137 Cyprinidae species on LumaReef: 1.3 cm (Strawberry Rasbora) to 200 cm (Yellowcheek).
- Siamese algae eater tank size: what is the minimum?
- A tank at least 150 cm long. In LumaReef that is the Living room tank or larger.
- Siamese algae eater water parameters: what does it need?
- Temperature 22–27 °C, pH 6.0–7.5, hardness 3–12 °dGH. Close to what most Cyprinidae on LumaReef need (20–26 °C).
- Siamese algae eater tank mates: what can it live with?
- It gets along with 79 of the 99 freshwater species in the catalogue, such as Bristlenose pleco, Freshwater angelfish, and Swordtail.
- Siamese algae eater: alone or in a group?
- Keep at least 6 together.
- Siamese algae eater and plants: is it plant safe?
- Yes, it leaves plants alone.
Similar species
Sources
Siamese algae eater: compiled from these references.









