Colombo Ammonia Pond Test Kits will help you know what your ammonia level is, is by testing the water with this Ammonia test kit.
Ammonia (NH3) is excreted by fish directly into the pond water, and is also released from the breakdown of solid waste and uneaten food. Ammonia is highly toxic to fish, but is usually removed from the water by the good bacteria which live inside the pond filter.
Regular testing, especially in new ponds, will prevent damage caused by ammonia poisoning.
Colombo Ammonia Pond Test Kit contains 40 tests.