Assertion: ammonia | /r/AtLocation | aquarium
Facets:
value: in two forms
type: OTHER
Source sentences:
text: Ammonia exists in an aquarium in two forms: free or unionized ammonia (NH3) and ionized ammonia, called ammonium (NH4).
text: Ammonia is present in all ponds and aquariums, but usually in minute amounts.
text: While it is true that ammonia can be very toxic when found in the aquarium, it depends on independent water characteristics how deadly it actually becomes.