Other fish · Crossocheilus
Siamese algae eater
Crossocheilus oblongus · Streams of Thailand and the Malay Peninsula
Photo: User:Ark pl wiki, CC BY 3.0, via Wikimedia Commons
At a glance
Water temperature
24–26 °C 75–79 °F
pH
6.5–7 neutral water
Adult size
15 cm 5.9 in
Swims
Bottom and mid-water mostly on the floor and in caves
Keep together
3 or more a shoal feels safe
Current
Gentle a steady gentle flow
Food
Grazer
Temperament
Peaceful
≈ Every value here is an estimate from typical hobby ranges. We're checking them against sources.
Where it comes from
Home water
Streams of Thailand and the Malay Peninsula
Lives in stream habitat.
The dot marks where it's collected. Home from iNaturalist native sightings (21). Map: Natural Earth.
Tank mates
Checked against a roomy 300 L planted tank with moderate flow and plenty of caves. Your own tank may change the answer: try it in Your tanks.
Good together
- Peppermint bristlenose L181 Plecos · 13 cm · bottom
-
Flash pleco L204
Plecos · 11 cm · bottom -
Amano shrimp
Shrimp & snails · 5 cm · bottom -
Bolivian ram
Cichlids · 8 cm · bottom -
Bronze corydoras
Corydoras · 7 cm · bottom -
Cardinal tetra
Tetras · 4 cm · mid-water -
Celestial pearl danio
Rasboras & danios · 2.5 cm · mid-water -
Cherry barb
Barbs · 5 cm · mid-water
Keep apart
-
Need different temperatures
Big white spot L142DiscusGerman blue ramGold nugget L081Golden cloud L048Hi-fin green phantom L200hf
-
Aggressive
In the hobby
In stock now
Not in stock at any store we track.
Tanks with this fish
No shared tanks have this fish yet. Share yours from Your tanks.
From keepers
Notes appear here when a keeper shares a tank with this fish and writes about it.
Questions keepers ask
How big does a Siamese algae eater get?
About 15 cm (5.9 in) as an adult.
What temperature does a Siamese algae eater need?
24–26 °C (75–79 °F).
What pH does a Siamese algae eater need?
pH 6.5–7.
Does a Siamese algae eater need to be kept in a group?
Yes. Keep at least 3.
Is the Siamese algae eater aggressive?
No. It is peaceful with fish that suit the same water.
Where does the Siamese algae eater come from?
Streams of Thailand and the Malay Peninsula.
What fish can live with a Siamese algae eater?
Good tank mates include Peppermint bristlenose (L181), Flash pleco (L204), Amano shrimp, Bolivian ram, Bronze corydoras.
All the numbers
| Temperature min (°C) | 24 | Estimate |
|---|---|---|
| Temperature max (°C) | 26 | Estimate |
| pH min | 6.5 | Estimate |
| pH max | 7 | Estimate |
| Adult size (cm) | 15 | Estimate |
| Flow | Moderate | Estimate |
| Habitat | stream | Estimate |
| Smallest happy group | 3 | Estimate |
| Temperament | Peaceful | Estimate |
| Diet | Grazer | Estimate |
| Typical price min (CAD) | 4 | Estimate |
| Typical price max (CAD) | 8 | Estimate |
Some values are estimates from typical hobby ranges and haven't been checked against a source yet.