I brought 6 plattys for my tank on Sunday... I got my water tested the same day and they said it was fine. Since getting them I have had 2 deaths. So I phoned the shop and they said if I bring some of my water in they will refund them if they are okay... So I did without any worried as I knew it was fine. They tested it and it was a little high in Ph and Amania... (Any good fish keeper will know these two go up when new fish is added) and they wont give money or the new fish to me. Even after explaining my water was fine when i brought them, the other 4 is completly happy and swimming around without a care in the world, and that water condictions change for a while after adding new fish !!!