No. According to the query relevant public information, lemonade fish external morphological characteristics, junco fish body extension, nearly cylindrical, slightly lateral, head flattened, wider than high, eyes are smaller, located on both sides of the head, its upper edge a few to the back, no lipid membrane, back spines are non-toxic, poisonous will be released to pollute the water supply, infringing on other aquatic organisms, has not been found to be poisonous back thorns, the back of the thorns are used for their own protection. Lemonfish is a marine fish, also known as the sea anguilla, belonging to the order Perciformes, family Juncoidae, genus Junco, distributed in the Atlantic Ocean, the Indian Ocean and the Pacific Ocean (except the East Pacific) and other tropical waters.