Siamese Algae Eater

About

The Siamese algae eater (Crossocheilus siamensis) is one of those rare fish that genuinely delivers on its reputation as an algae controller. Where many so-called algae eaters are selective at best, this species tackles filamentous algae and even cyanobacteria. The stubborn blue-green slime that most fish completely ignore. That combination makes it genuinely useful rather than just decorative in a planted setup. Native to river systems in Southeast Asia, it's a slender, torpedo-shaped fish with a bold dark horizontal stripe running from snout to tail, which helps distinguish it from several lookalike species that don't share the same appetite. Behavior-wise, these fish are peaceful and active, spending most of their time grazing along surfaces rather than harassing tankmates. They're compatible with dwarf shrimp and generally leave plants alone, which is a meaningful plus in a heavily planted aquarium. Provided the tank is fully cycled and established before introduction, they're quite forgiving and adapt to a reasonable range of water conditions. A solid choice for newer keepers who want practical algae management without a steep learning curve. They can reach a decent adult size, so keep that in mind when planning a community, but their temperament rarely causes issues.