Have about 1.5 acre pond in Ohio which is 5 years old. Have used bottom aeration and aquashade since beginning with much success. Had very limited algae issues in past 4 years and spot treated algae with Cutrine Plus which worked well. This year has been a nightmare! We have a very shallow and large beach area where the entire bottom is covered with algae mats that eventually float to the top. I also have it along some of the edges. I've tried Cutrine plus liquid and granular but with limited or no success. Had a pond guy come out today and he said it's ocillatoria but I think it looks like filamentous algae? My questions below and thanks for your help!
1) Can anyone confirm algae type (see pic)? 2) Any remediation ideas? Note I plan to drain pond enough to dig beach deeper and cleanup edges as now beach way too shallow. 3) Any algaecide recommendations? 4) Would tilapia help next year if it's ocillatoria?
