I have a tank thats about a 1 1/2 weeks old and the ammonia level is rising. It is now at .5ppm and I am doing 25% water changes daily. How do I reduce the ammonia levels or is this normal to have happen during the cycle. Also one of my fish came down with ich so is the medication I am putting in there effecting the ammonia and am i supposed to keep putting in the medication with each water change like it says or should I stop because the ich is gone?