1. Never wash again the newly bought fish, as water oxidizes it and would not keep fresh for longer than 1 week.
2. Do not use plastic bag. Old newspapers the best which kill the fishy smell.
3. Do not re-freeze fish after taken out from freezer.
4. Wrap by daily portion of fish in old newspapers. It can keep fresh for 3 months.
Note: For prawn, do not wash and de-vein before wrap dried in old newspapers.