NH4 (ammonium) is a nontoxic salt. It is the ionised form of ammonia. NH3 and NH4 together are often referred to as total ammonia nitrogen (TAN). Under normal conditions, NH3 (ammonia) …

what is ammonium NH4 ? Water chemistry > What is ammonia NH3 & NH4? > what is ammonium NH4 ? If you have a worry or problem with NH4 then it is often a good idea to understand …

In true terms NH4 is a nontoxic substance in the aquarium, however due to the equilibrium which occurs between NH3 / NH4 at a given pH and temperature it is better to measure NH4 as an …

NH3 is reported in the unit of ppm but this is interchangeable with mg/L as it is a gas dissolved in water. Want to reduce your ammonia because you have a high level or problem? If so then …

The movement in pH means that all of the ammonium (NH4) in the sample will be liberated to the NH3 form. The NH3 then reacts with the chemistry in the test to create the colour change that …

Nessler test kits measure ammonia NH3 and ammonium NH4. This is important to note and often missed as you will need to use a look up chart so see NH3 levels. New Salicylate based tests, …

This in turn lowers pH and allows the toxic NH3 being produced in the bag to turn into non toxic NH4. Once the bag is opened, oxygen will replace CO2 and the pH will rise. Also, pH can rise …

NH4 – ammonium, although not toxic itself a change in temperature or pH can release it into NH3. There are many more exotic chemicals that can be measured in the aquatic environment but …

When we measure the pH,we are measuring hydroxyl ion in solution, as pH increases so do the hydroxyl ions which attach them selves to the hydrogen ions leaving ammonia in its toxic …

NH3 and NH4 always form equilibrium with pH and temperature. When you do a water change the new water will often be harder and have a higher pH than the water you are removing. This is …