http://www.sepond.com/Sportmax.html

here is the link to the fertilizer that south east pond mngt brought to my cousins pond. is says water soluble..i think they said it was $15 a bag..

i havent used it yet. the stuff i used was 20-20-5 granule and put it in the incoming stream..

sun/clouds makes a huge difference in seeing the secchi disk i have discovered in the last 2 days...

Scott Hanners