What is your visibility ?
Are there fish in the pond ?
No more fertilizer this year.
Did you have the soil/water tested to see if you even need fertilizer?
Many ponds don't need any due to rich dirt/pond bottom.
That is to much N (first number) for me. Often 0 N is needed. Excess N often causes blue/green algae blooms. See this archive.

http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=96127#Post96127

Last edited by ewest; 09/20/18 11:35 AM.