I went and fished the pond today. I pulled out 26 more GSF and then they just stopped. Totally stopped and didnt bite anymore. I also threw in three LMB that I caught in other ponds. The good news, I caught 2 LMB while fishing out the GSF that probably went 2 lb. and had huge bellys. I also caught a small one about 5 inches. The farmer also said he isnt going to spray manure around this field for about 3 years so that should give me a chance to get the algae in control. Thanks again for the help and I will keep posting updates.