This is my first aquarium and despite. I have a 55 gallon planted aquarium with 4 cories, 5 otos, and 2 juvenile angelfish. Before adding fish I cycled the aquarium for a month, with the plants, and had a reading of 0-.25 ammonia, 0 nitrites, and 5-10 nitrates, with a ph of about 7.4 -7.8. I...