YOU SAID:

the fish's dad was from the reef but didn't know that now his home was destroyed

INTO JAPANESE

魚のお父さんはサンゴ礁出身でしたが、家が破壊されたことを知りませんでした

BACK INTO ENGLISH

Fish dad was from a reef but didn't know his house was destroyed

INTO JAPANESE

魚のお父さんはサンゴ礁出身だったが、家が破壊されたことを知らなかった

BACK INTO ENGLISH

Fish dad was from a reef but didn't know his house was destroyed