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清道夫又名吸盘鱼、琵琶鱼,属鲇鱼科,原产地巴西、委内瑞拉,作为热带观赏鱼从国外引进。清道夫头扁平,背鳍高耸,胸鳍宽大似蒲扇。口下位,口须1对,口唇发达如吸盘。体表粗糙,全身披盾鳞。体黑色或淡褐色,有黑白相间的花纹。大个体一般体长20~30厘米。对水质要求不严,生长速度快,喜夜间活动。经常吸食水族箱缸壁上的藻类及其缸内的残饵粪便,使鱼缸保持清洁卫生,故
Scavenger, also known as sucker fish, anglerfish, is a branch of mullet, origin Brazil, Venezuela, as a tropical ornamental fish imported from abroad. Scavenger head flat, dorsal tall, pectoral fins wide palm-like fan. Mouth bit, 1 pair of mouth whiskers, lips developed as sucker. Rough surface, the body Phi shield scale. Body black or light brown, with black and white patterns. Large general body length of 20 to 30 cm. Strict requirements on water quality, fast growth, hi night activities. Frequent use of algae on the aquarium tank wall and the residual bait excrement in the tank, so keep the aquarium clean, so