Big Jake the key is finding out the limiting factor. We all have a lot to learn about water chemistry and pond blooms.
Georgia ------- Soil Testing Laboratory
ALFA Agricultural Services & Research Building
961 S. Donahue Drive
Auburn University, AL 36849-5411
Telephone: (334) 844-3958 .
See this for other sources of test sites
http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=92617#Post92617 This may help has some good sources of info
http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=96127#Post96127