my gallon size is 10 gallons, my pH level is 7.6, the petsmart checked my water and said that the ammonia and nitrate and etc was fine on it, I have 2 mollies (1 female & 1 male), I have 3 guppies (1 male, 2 females) and three mickey mouse platys. One frog and one sucker fish, I bought the three...