Please help! We have a 45 gallon tank new setup but we have had good readings for a month prior to adding our fish. We have two Oscars and a couple other chidlids. We had a bout of ick last week and treated with meds and it cleared. Now one of my Oscar's has scales missing and also seems like his eye is a little cloudy. Both oscars are just hiding on the bottom in one of our corner pieces. Bribed with food to get a pic. I have shut off the light.The ph in our tank is 7 and our ammonia is normally at .5 but it did spike last night. The temp. Is kept at 79. We will be changing out water tonight which we do on a weekly basis. Please help we love our oscars and want them to grow and be with us for awhile.