Timnic, I am no expert here but I will pass on what I have learned but others with more knowledge will be here shortly I am sure.
I just fertilized my new pond in N. E. Texas and did so after I was sure there was little to no FA growing in my pond. If you have FA and fertilize, the FA will take the nutrients and will reduce any bloom you might get. I have read where FA is present, it should be killed off and then a Fertilizer can be used if needed. In your case it sounds like you had FA and when you added the fertilizer it fed the FA. I think your next step if to add something to kill off the FA and or add Tilapia to the lake.

Tracy


Do not judge me by the politicians in my City, State or Federal Government.


Tracy