Siamese Algae Eater — Fish Profile
Crossocheilus oblongus
Quick Specs
| Adult Size: | 6.0" |
| Temperament: | peaceful |
| Care Level: | beginner |
| Min Tank Size: | 30 gallons |
| Temperature: | 75-82°F |
| pH Range: | 6.5-7.5 |
| Diet: | herbivore |
| Origin: | Southeast Asia (Thailand, Malaysia) |
| Lifespan: | 10+ years |
Overview
Siamese Algae Eaters are one of the few fish that eat black beard algae, making them highly sought after by planted tank enthusiasts. They are peaceful, active swimmers that should not be confused with the similar-looking but aggressive Chinese Algae Eater. A true friend for aquascapers.
Care Guide for Siamese Algae Eater
Tank Setup
Siamese Algae Eater requires a minimum tank size of 30 gallons. Maintain water temperature between 75°F and 82°F, with a pH range of 6.5 to 7.5. A properly sized tank with adequate filtration and regular water changes is essential for long-term health. When housing Siamese Algae Eater with other species, always choose a tank size that accommodates the most demanding fish in the community.
Feeding
Siamese Algae Eater is a herbivore feeder. Provide a varied diet appropriate for herbivore species to ensure optimal health and coloration. Feed small portions 2–3 times daily, and remove uneaten food after a few minutes to maintain water quality.
Temperament & Compatibility
This species is classified as peaceful. Siamese Algae Eater reaches an adult size of 6.0 inches and has a care level of beginner. Always research compatibility before adding new fish to an established aquarium. Individual temperament can vary, so monitor new introductions closely for the first 48 hours.
Origin & Lifespan
Siamese Algae Eater originates from Southeast Asia (Thailand, Malaysia) and has an expected lifespan of 10+ years when kept in proper water conditions with appropriate tank mates and diet.
Compatible Tank Mates
🟢 Good Tank Mates
🟡 Caution Tank Mates
🔴 Risky Tank Mates
Recommended for Siamese Algae Eater
Omega One Veggie Rounds — $9.49Herbivore sinking rounds for algae eaters