AALSO Field Guide Questions and Answers Verified
100% Correct
Total Ammonia Nitrogen is a combination of ___ and ___.
Ammonia; Ammonium
Ammonia is ionized into Ammonium at ___ pH levels.
lower
The breakdown of Ammonia into less toxic compounds is a bacterial process known as ___.
nitrification
Decomposing biological materials will release ammonia. (True/False)
True
Nitrite affects fish by entering a fish's bloodstream through the ___ and impairing ___, a
condition called ___.
gills; transport of oxygen by red blood cells; brown blood disease
Nitrifying bacteria consume oxygen in the process of converting Ammonia to Nitrite and
Nitrite to Nitrate. (True/False)
True
Nitrate may be assimilated into ___, or it may be ___.
plant life in the environment; off-gassed from the water
Colorimetric Nitrate tests will not have interference from nitrite. (True/False
False; though the contribution is negligible in cycled exhibits
If NO2-N is known, NOx-N can be converted to NO3-N using the following formula: ___.
NO3-N = NOx-N - NO2-N
, Normal Nitrite levels are below roughly ___.
0.5 mg/L
Normal Ammonia levels are below roughly ___.
0.05 mg/L
Excessive Ammonia levels are above roughly ___.
0.1 mg/L
Excessive Nitrite levels are above roughly ___.
1 mg/L
Excessive Nitrate levels are above roughly ___.
100 mg/L
Excessive Nitrogen levels can be remedied using ___.
50% or more water changes
Ammonia and Nitrite will gradually rise in an established tank. (True/False)
False; nitrifying bacteria should process these into nitrate
Establishing bacteria in a new aquarium can take ___ for a tropical aquarium and ___ for a
temperate aquarium. This can be expedited by ___.
3-4 weeks; 6-8 weeks; introducing nitrifying bacteria into the system
It is difficult to convert between Nitrite as N and Nitrite (or any other equivalent comparison
for forms of Nitrogen). (True/False)
False; you can simply multiply or divide by a conversion factor
Normal nitrate levels are below roughly ___.
50 mg/L
100% Correct
Total Ammonia Nitrogen is a combination of ___ and ___.
Ammonia; Ammonium
Ammonia is ionized into Ammonium at ___ pH levels.
lower
The breakdown of Ammonia into less toxic compounds is a bacterial process known as ___.
nitrification
Decomposing biological materials will release ammonia. (True/False)
True
Nitrite affects fish by entering a fish's bloodstream through the ___ and impairing ___, a
condition called ___.
gills; transport of oxygen by red blood cells; brown blood disease
Nitrifying bacteria consume oxygen in the process of converting Ammonia to Nitrite and
Nitrite to Nitrate. (True/False)
True
Nitrate may be assimilated into ___, or it may be ___.
plant life in the environment; off-gassed from the water
Colorimetric Nitrate tests will not have interference from nitrite. (True/False
False; though the contribution is negligible in cycled exhibits
If NO2-N is known, NOx-N can be converted to NO3-N using the following formula: ___.
NO3-N = NOx-N - NO2-N
, Normal Nitrite levels are below roughly ___.
0.5 mg/L
Normal Ammonia levels are below roughly ___.
0.05 mg/L
Excessive Ammonia levels are above roughly ___.
0.1 mg/L
Excessive Nitrite levels are above roughly ___.
1 mg/L
Excessive Nitrate levels are above roughly ___.
100 mg/L
Excessive Nitrogen levels can be remedied using ___.
50% or more water changes
Ammonia and Nitrite will gradually rise in an established tank. (True/False)
False; nitrifying bacteria should process these into nitrate
Establishing bacteria in a new aquarium can take ___ for a tropical aquarium and ___ for a
temperate aquarium. This can be expedited by ___.
3-4 weeks; 6-8 weeks; introducing nitrifying bacteria into the system
It is difficult to convert between Nitrite as N and Nitrite (or any other equivalent comparison
for forms of Nitrogen). (True/False)
False; you can simply multiply or divide by a conversion factor
Normal nitrate levels are below roughly ___.
50 mg/L
