Hi, I've had my 75g aquarium up and cycling for just over a week now. Haven't really been getting any readings until yesterday when it seemed like i was getting a reading for a small amount of nitrite in the tank and potentially a small amount of nitrate. Skip forward to today, nitrite remained the same and nitrate seemed to go up. But, the colors are all so similar on the API test kit that i really have no clue. Any help would be appreciated. Though, i'm pretty positive ammonia is at 0.