Hi all Thanks for all the advice so far, I have bought the test kit as advised! 2 and a half weeks since I setup my aquarium and here are my results. I did about a 30% water change 3 days ago. With flash.. Without flash.. It's quite hard to tell the colours, especially for the nitrite and nitrate. I read it as.. Ammonia: 1-2ppm Nitrite: 2-5ppm?? Nitrate: 10-20ppm?? Is this strange? With ammonia and nitrite levels still above 0, should I be getting a high nitrate reading?