Gunakan ikan segar. Masak ikan dengan teknik poaching hingga setengah matang. Simpan ikan dalam wadah makanan.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Poaching fish is a great way to preserve it for a few extra days so you don't have to eat it the same night you bring it home. If you happen to have access to a lot of fresh fish, and you want to be able to eat some later in the week, this method will allow you to keep it in the refrigerator longer than you otherwise would, then prepare the fish using any method you choose when you're ready.  For example, if you want to have fried fish on Friday night, but you know the fish won't keep until then