Ammonia
Ammonia occurs in a newly setup tank. However, it can also appear in a established tank due to too much bio load, decaying plants, dead fish, uneaten food. In aquarium Ammonia present in two forms: NH3 and NH4. Out of two NH3 is more dangerous for the fishes. It does not mean that NH4 is safe. So we could try to keep Ammonia level as below as possible. When Ammonia level rises, pH level will be drop.
Symptoms of Ammonia poisoning:
a. Sudden death of fish.
b. Problems in nervous system, internal organs, gills and immune system.
c. Difficulty in breathing.
d. Lack of appetite.
How to keep Ammonia level in control:
1. Presence of Nitrifying bacteria: Nitrifying bacteria converts the toxic ammonia into less toxic nitrite.
2. Some rocks and resins are able to soak Ammonia.
3. Addition of some salt. (1 gram per litre)
4. Algae and plants also consume ammonia.
5. Feeding under control.
6. Removing dead fishes/Invertebrates/Plants.
7. Water change drops Ammonia level instantly.
So care your aquarium water and water will be care your aquatic pets.