同一种鱼,个头小的更安全。因为它们年龄小,体内有害物质积累得也少。不过,如果鱼的个头太小又会刺多、肉少,吃起来不方便,鲜嫩程度也差一些。综合两者考虑,专家给出了常见几种鱼的理想重量。草鱼选1.5～2公斤的。草鱼便宜,鱼肉也鲜嫩可口。重1.5～2公斤的草鱼,细刺较少,吃起来也容易些。川味酸 The same kind of fish, smaller and safer. Because of their young age, the body of harmful substances accumulated less. However, if the head of the fish is too small and will stab, meat less, eat it inconvenient, less fresh degree. Taking both into consideration, experts give the ideal weight for several common fish species. Grass carp choose 1.5 ~ 2 kg. Grass carp cheap, fresh fish delicious. Grass carp weighs 1.5 to 2 kg, thin spines less easy to eat more. Chuanac acid