Ammonia is passed from the gills of fish in their urine, also rotting food and decaying plant matter are contributors of ammonia. It exists in two forms in the aquarium and the first step is to understand the difference between ammonium NH4 and free ammonia NH3. NH3 (ammonia) is a gas and sometimes called toxic or free ammonia. It is the unionised form of NH4. NH4 (ammonium) is a nontoxic salt it is the ionised form of ammonia. NH3 and NH4 together are often refered to as total ammonia nitrogen (TAN). So as you can see from above NH3 is the nasty toxic element that needs monitoring.
Dr. Gary Gilcrease, MD is a Doctor primarily located in Kyle, TX. He has 23 years of experience. His specialties include Family Medicine. Dr. Gilcrease is affiliated with Seton Medical Center Austin and St David's Medical Center. He speaks English.
In her autobiography, The Living of Charlotte Perkins Gilman (1935), Gilman described the debilitating experience of undergoing the prescribed ârest cureâ for ânervous prostrationâ after the birth of her child.