I have bought a tropical fish tank from a friend & we are going to move it this weekend. The tank is set up at his place which is just up the road so the move will not take to long. What i’m worried about and i could do with some advice on is the setting it back up at my place. The main problem i see is the water. What do i do with the new water that has just come out of the tap and re-introducing the fish. I have a bad feeling that i’m going to kill the lot.