750 Grams size is also pretty reasonable size for buy from Banglarilish. 750g+ Ilish is standard size like previous all sizes. For small family this size suite prefect. 750+ is no less then big amount but enough.
700g+ size ilish fish young and energetic for themselves as well us. Oil content is in this fish is pretty standard to maintain healthy diet and proper meal. Fry a slice and bite!