The plural of fish is fish.
Or fishes. You can verify with the Oxford dictionary, if you disagree.
Fish is correct in the context of this sentence. See my reply to you further up on this page.
Sure it shouldn't be "iki ekmeğim"? ;-)
Ekmeğim means "my bread" (from ekmek)
Why baligim and not balik ? Is it because they are mine ?
why we used benim instead of ben ?
I also want an answer to your question. Can anyone help??
Because there is the possessive ending -(i)m used for first person singular. If you have a possessed object, you also must have a possessor. This is the rule in turkish: both the possessor and the possessed object get endings.