Thailand is a South East Asian country with numerous rivers, marshes and swamps. Most run from the mountainous north to the central lowlands. Big river systems include the Chao Phraya and Mekong. Different aquatic habitats have different fish populations: many of the regularly seen species of aquarium fish from Thailand come from slower moving bodies of water, possibly vegetation choked, or blackwater: anabantids, Gouramis, fighting fish (Betta) and of course the Arowana. Several interesting species of barb, rasbora and danio also hail from Thai waters. Have a look at some of the species listed below:
Balantiocheilos melanopterus Silver shark
Betta imbellis
Betta splendens Siamese fighting fish
Botia modesta Red finned loach
Dermogenys pusillus Half-beak
Epalzeorhynchos frenatum Red-fin shark
Gyrinocheilus aymonieri Golden algae eater
Pangasius sutchi Pangasius catfish
Rasbora maculata Dwarf Rasbora
Scleropages formosus Golden Arowana
Trichogaster leeri Pearl gourami
Trichogaster microlepis Moonlight gourami
Trichopsis vittata Croaking gourami