Mieke7

We moved to the north island to the south island and decided to change from tropical fish to gold fish. We cycled the new tank for 2 weeks. Added food to help with the cycling and 3 weeks ago added fish. The amonia level remains high. Some of the ornaments started spotting and I cleaned them. I did a 25% water change a few days ago and cleaned the filter. Added stress coat and vacummed the gravel. Now the tank water is getting greener and greener. I have stopped feeding and turned off the light for a day. There is 1 life plant in the tank, some ornaments and 2 fantail goldfish. What can I do to get nice clear water? Some of the products they try to sell me are so expensive and staff contradicts when I ask (students I think)