I just finished a fishless cycle on my 120gallon, (5weeks total) just wanted to know how much ammonia should I keep adding (because the fish Im getting wont be ready for another week) so I just need to maintain (feed) my colonies. I was putting in about 4 teaspoons of ammonia during nitrite phase to get a reading of 1-2 ppm should I keep that amount or alittle less. Then the day b4 the fish come big water change...