Keep doing what you have been. FA was likely in place last winter growing on the bottom and not a result of fertilization. FA (assuming that is what you have)starts its cycle on the pond bottom and as it grows it floats to the top as the last part of its life cycle. Post a pic of the FA. Be sure using granular fertilizer that you get it up in the water column (platforms) and not on the pond bottom.

Last edited by ewest; 07/22/14 08:04 AM.