Is it okay to put the fish tank in a house with a transparent north and south?

No, it's unlucky to keep a feng shui fish if it dies. Generally speaking, feng shui fish can't be raised in front of electrical appliances, under the throne of God, or in front of the throne of God (as the old saying goes, the god of wealth goes into the water to break the wealth). You can usually see it at first sight when you enter the door, preferably facing the door. It is best to sit east to west, north to south and west to east.