Assertion: ammonia | /r/AtLocation | the aquarium
Facets:
value: from all the various sources
type: OTHER
Source sentences:
text: Ammonia is produced in the aquarium from quite a number of sources: respiration by-products, urination and from fecal matter as well.
text: Once the sudden drop does occur, this indicates that the proper strains of beneficial nitrifying bacteria are now able to immediately reduce all the ammonia and ammonium that is produced in the aquarium from all the various sources.