With that heavy of a bloom you probably did not use enough Phycomycin per acft. Maximum dosage is 100/lb/acft. It is an oxidizer and it has an oxidation potential for each pound applied. When the biomass is greater than the material applied a percentage of algae does not get oxidized/killed. With that heavy of a biomass you may have to resort to using a copper based product. Do not kill it all at one time or you could create a DO shortage when all of it dies & decomposes at once. Keep in mind that you are treating the symptom not the cause of the problem - nutrients or a nutrient imbalance.
Last edited by Bill Cody; 06/29/16 08:07 PM.
