So i recently started to have problems with my plants. i determined i had potential root rot or nutrient staining on my roots so i decided to flush and clean with hydrogen peroxide and redo my reservoir.i added a second air pump and air stone and i cleaned everything with H202 and introduced a new product called hydozyme into my regimen. i noticed today that there was a small amount of white foam on on top the water along the edge of res and around airlines. is foaming expected from enzyme products ?