科: Mastacembelidae
Baim (big)（Mastacembelus armatus）は刺鳅科に分類される淡水魚で、中米・北米に分布する。成魚は約 67.5–99 cm、適水温 22–28 °C。
Mastacembelus armatus, a member of the family Mastacembelidae, comes from Central and North America, where it inhabits warm freshwater streams and lakes. Peaceful community fish and omnivore; quality prepared foods, it grows to 67.5–99 cm and adapts well to a properly set-up aquarium in the 22–28 °C range. Other Mastacembelus species in our database include Mastacembelus erythrotaenia.
中級者向き。Peaceful community fish。Small groups recommended。
適水温 22–28 °C。22–28 °C recorded range。Stable temperature matching the species origin。
成魚は 67.5–99 cm。最低 500 L。
Omnivore; quality prepared foods。Fine sand and gravel上で採餌する性質を活かし、沈む餌も与える。
可能。Peaceful community fish。おすすめ：Similar-sized peaceful community fish — Similar size and water needs。Much smaller fish — May outcompete or bully tiny tankmatesとの混泳は避ける。
原産地は中米・北米。Warm freshwater streams and lakesに生息。Still to gentle current。Moderate oxygen levels。
換水・メンテ時はふたを推奨。
繁殖：Not documented in home aquaria。Subtle external differences。