You can get water tested for Ortho-P, Total P, Nitrogen. But the time of the year will also have an effect on the test results.

i.e. a water test taken in the middle of winter while the plant life is at it's ebb in the pond vs. middle of summer when plant and plankton are growing strongly. Then more nutrients are tied up in the plants/algae.

www.hoosierpondpros.com


http://www.pondboss.com/subscribe.asp?c=4
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).