Hello I've been reading through the archives and am a new subscriber to the Pond Boss magazine and looking for any advice for my specific pond, situation. I basically have issue with FA that re-grows in 3 days after manual removal and underneath the FA is a thin stringy weed and seems to promote the re-growth of the FA. I have attached some pictures (since they tell the story better than I can) and some additional details on my pond size, what I've tried, etc... The previous homeowner used harsh herbicides that I prefer to stay away from (karmex and copper sulfate). We've been in the house since last August and May of 2012 is last time pond was treated by previous homeowner. Primary use of pond is for fishing and swimming (once I can get rid of the mats of FA).
I live in SE Michigan (Shelby Township)the pond is 11-12 years old stocked with LMB, SMB, some NP, BG and CC. I've read up on many different aeration systems too since that seems to be something I should add as currently only have a irrigation pump 1.5 hp pushing 68 GPM. I am currently battling a Filamentous Algae issue that is covering the whole outer rim of my pond and there is a thin weed, think it's naiad, underneath the mat of FA. I've manually removed the FA many times, but within 3 days it's back in full. I've used some products from local company called the Pond Guys, but had minimal effects on controlling the Algae (I've tried Cutrine Plus granular, Algae Defense and have added their natural bateria products - which did clear up the water).
The intended use for our pond is for fishing and swimming. Before doing any more manual FA removal and weed removal, figure first step is to add a bottom aeration system. I calculated my pond size it's 0.37 acres in surface area (190' x 92' roughly). Max depth near the middle is 15', most of the pond is in the 4-5' range. Should I use one diffuser near the middle or do I need 2?
I've attached pictures also and appreciate all feedback. Thanks in advance. Ron
"Fishing and Catching are two completely different sports"
