Siamese Algae Eater
The Siamese algae eater is a slender cyprinid of the family Cyprinidae, native to Southeast Asia, including the Chao Phraya and Mekong basins. It has a torpedo-shaped silvery-tan body marked by a single bold black stripe running from snout to tail, which fades when the fish is stressed. It is a peaceful, active, mostly bottom-oriented fish, though it can become more assertive with age. It can be kept singly or in small groups and mixes well in community tanks; larger specimens may squabble among themselves in cramped quarters. It is valued as one of the few fish that eats certain nuisance algae, including black brush algae, though it becomes less inclined to graze as it matures and is fed prepared foods. It appreciates a well-oxygenated, planted tank with current. Its diet is omnivorous, taking algae, sinking foods, vegetables, and some live or frozen fare. It is rarely bred in home aquariums.
Water parameters
| Temperature | 23 – 26 °C |
|---|---|
| pH | 6 – 8 |
| Carbonate hardness (KH) | 2 – 12 °dKH |
| General hardness (GH) | 5 – 20 °dGH |
Tank & stocking
| Minimum tank volume | 150 L |
|---|---|
| Volume budget per individual | 30 L — adds up with tank-mates |
| Minimum group size | 4 individuals (shoaling) |
“Minimum tank volume” is a reasonable floor, not an absolute limit. The per-individual budget is used by the Aqua app to estimate how heavily a tank is stocked.
Frequently asked questions
What size aquarium does Siamese Algae Eater need?
Provide at least 150 litres for a small group to keep Siamese Algae Eater in good conditions.
What water parameters does Siamese Algae Eater need?
A temperature of 23–26 °C, pH 6–8.
Is Siamese Algae Eater peaceful or aggressive?
Its temperament is peaceful.
What does Siamese Algae Eater eat?
Its diet: omnivore.
How many Siamese Algae Eater should be kept together?
It is a social species: keep a group of at least 4.
How big does Siamese Algae Eater get?
Around 15 cm as an adult.
Is Siamese Algae Eater suitable for beginners?
Care level: beginner.
Planning a tank with Siamese Algae Eater?
AquaTender turns these parameters into live advice: it checks whether your tank is big enough, how heavily it's stocked, and whether your fish are compatible — then tracks water tests, photos and maintenance for you.
Fish from the same biotope
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