- A waste product excreted through fish gills. Ammonia is toxic to the fish, so it is important to reduce ammonia levels by use of pond products or natural methods.
- AMMONIA (NH3) One of the beginning steps in the nitrogen cycle. It is toxic to most aquatic organisms, and levels should be un-measurable after your pond has cycled.
EXAMPLE:
Test kits are available to determine the amount of ammonia in a pond ecosystem so treatment can be done as needed.
