The ammonia is at 5.0 or 6.0ppm up from 2.0ppm a couple days ago. nitrates at 0ppm. Tank is 3 weeks old but had to do some water changes and in treatments :/. It's a 10 gallon with 2 platties and adf. I added ammo lock a couple days ago when it read 2.0. Should I add more or is it too much?