魚蛋 and 魚旦 can been used interchangeably, and are pronounced the same. 魚旦 is used at street hawker stalls and dai pai dong in Hong Kong. 魚丸 (yú wán) and 鱼圆 (yú yuán) are more commonly used in Singapore and Malaysia.
There are two kinds of fish balls in Hong Kong. One is smaller in size, yellow in colour, usually made with cheaper meat, and is sold in skewer, each skewer containing five to seven fish balls skewer on a bamboo skewer. Usually sold at food stalls. There are many stalls which support themselves just by selling this kind of fish ball, similar to hot dog stands in the United States. The fish balls can be either spicy (often called curry fish ball) or not. It is one of the most popular and representative "street foods" (街頭熟食) of Hong Kong.
The other kind is bigger in size, white in colour, made with more costly fish meat, and has a considerably different texture and taste. This kind of fish ball is usually eaten with noodles at restaurants providing Chiuchow-style noodle , and at some cha chaan tengs, which also provide beef ball (牛丸) and cuttlefish ball (墨魚丸). Readily available in traditional market and supermarket, the fish ball is also a popular ingredient for hot pot.
Fish balls in the Philippines are sold by street vendors pushing wooden deep frying carts. The balls are served skewered, offered with a choice of three kinds of dipping sauces: Sour (pale orange colored) - vinegar, water, diced onions and garlic, Sweet (brown gravy colored) - corn starch, banana ketchup, sugar and salt, and Hot/Sour (amber or deeper orange colored) - the sweet variety with lots of small hot chilis added. Dark sauces are rare as these are soy sauce based and soy sauce is expensive in terms of food cost for street food. The latest (2006) iteration in the Philippine fishball industry is the introduction of 'ball' varieties: chicken, squid (cuttlefish actually), and kekiam. The last are low cost renditions vaguely resembling original Chinese delicacy of the same (soundwise) name. Chicken and squid balls as well as kekiam sell at 4 US Cents. Regular fishballs sell at 1 US Cent.