> ...Academic areas that study water chemistry are Geology, Environmental Science and Agricultural Science (Soil and Aquaculture)... Some of the texts on waste management or municiple water supplies might prove helpful, as could a good analytical chemistry handbook. > ...I've heard the following book contains a good practical overview of freshwater chemistry management, along with other stuff: > Fundamentals of Aquaculture: A Step-By-Step Guide To Commercial Aquaculture by James W. Avault, Jr. > I am trying to get a copy through the library to check it out but if anyone beats me to it please report back... > -Doug Brown > debrown@kodak.com One text that was recommended to me, but I haven't been able to track down yet, is Spotte, S., Fish and Invertebrate Culture: Water Management in Closed Systems, John Wiley and Sons, New York, 1979. I've been told it's worth checking out... - -Y- David A. Youngker nestor10@mindspring.com http://www.mindspring.com/~nestor10