Dead fish

Today has been quite a traumatic day in the fish world. Yesterday I cleaned the small tank and replaced a third of the water, thinking I was doing a good thing by the fish. Unfortunately, there must have been a contaminant which got in the water and when I got up this morning I noticed that the fish looked real bad. I moved them all into one of my pots in fresh water and did a complete water change on the tank, but it was too much for one of the gold fish and he died. I put him out in the garden. I also lost all of the guppies which I was taking care of for my sister's kids. Now I have to decide whether to tell them that their guppies died or just get new replacement guppies on the theory that they will never know the difference. Or pubish it on my blog and see if they are reading. I looked into fixing my bigger fish tank, but then I went to the pet store and saw that I could get exactly the same tank for only $23, which ment that fixing it really isn't worth it. In the end I got a 29 gallon tank with a light, which is nice because I won't have to keep it near the window. I am going to put all of the fish in the new tank which will also make my life a lot easier. I also bought fish medicine at the pet store, God knows what's in it but it seems to be working the fish have already perked up quite a bit. There is one in particular which looks like it won't make it through the night, but the others are improving. I set up the new tank, I will transfer the fish first thing next morning. Thank goodness they're carp, any other fish would be dead after all of this stress.