Fish sitting

We are looking after fish for the young man who lives over the road. They stayed once before and survived but I'm tempting fate doing it again. I was told what type they are but senility rules. Some are striped as in the picture and others aren't. There are also multitudinous snails. I believe there are six fish. I hope they will be the same number after 10 days. We also have a hamster. More of him later.