MadSci Network: Environment & Ecology
Query:

Subject: Fish Urea Output and Ammonia Solution Concentration Levels, Aquaria

Date: Sat Oct 7 15:36:46 2000
Posted by Paul Graham
Grade level: grad (science) School: Hobbyist Lab
City: Independence State/Province: MO Country: USA
Area of science: Environment & Ecology
ID: 970947406.En
Message:

Not a question, apparently, for even the "high-science" sites for 
aquariology. It is significant to fish-keeping and aquarium management.
It appears that the ammonia/ammonium (depending on ambient environment pH) 
in aquatic environments (closed)is a result of immediate decompostition of 
urea output of the animals; i.e. ammonia is not directly excreted but is a 
product of decomposition of urea (or is it urea alone?) once the urine is 
discharged to the water. Is this generally correct? The understanding here 
is vague, so a "square one" type answer might be best. What are the 
products of decomposition other than ammonia? etc. and what is the prompt 
for decomposition upon discharge to the water? For that matter, what other 
organic molecules and inorganic ions comprise the urine of fish?


Re: Fish Urea Output and Ammonia Solution Concentration Levels, Aquaria

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