Hi all. First time user. I had googled the internet about getting some aqua shade dye and chemicals to get rid of a few masses/clumps of American pondweed and some coontail. In doing so I came across this website and someone with the initials of bz and another by the name of Cecil and burgermeister talking about septic tank chemical from Home Depot. I don't know if I am in the forum I need to be. Here is my issue and questions: We live in the extreme Northeast of Indiana. In 2002 we had two contractors dig a pond for us. It is 5.5 acres in size with 1/2 of the pond being 25 - 30 feet deep. The north side of the pond consisted of all sand. The south of the pond was clay/blue clay mix. They used the clay mixture to cover the sand 3 -4 feet deep then used a vibrating sheepsfoot roller to pack in 1,200 bags of bentonite. In the middle of the pond they constructed a 1/4 acre island with 3 trash pumps for pumping water over two waterfalls going north and a small stream running west. They brought limestone rip rap 12" to 24" in diameter from quarries in Fort Wayne to cover the perimeter of the island down to the 30 feet depth on the north side and 12 to 20 feet around the rest of the island. We have 5 trees minus the small tree tops anchored to the bottom with cement filled tires and chains. We also have a half dozen rock cairns 6 feet diameter and 4 feet high. We had a six inch 140 foot deep well dug that produces 150 gallons per minute. Using that water source 24/7 it took 45 days to fill the pond. We had the pond stocked with shiners and fathead minnows..Then bluegill, shell crackers, perch, small mouth bass,, largemouth bass, and walleye. Only during extremely hot, dry, extended periods do we need to overnite top it off. Now, an issue we have is this. The beach area we have gets mucky. I would like to clean that area up with some chemicals. The beach area is approximately 50 feet wide. I purchased a diffuser, air lines, and pump for aeration years ago but never installed them. I have read pros and cons about aeration. Good for deep levels and bad for weeds and muck. We have never restocked the pond. Would it be beneficial to have catfish in the pond? I would like to hear from anyone that can advise me on what I can do or not do about muck, restocking, weed control (we actually have very few weeds for the size of the pond) some cattails, american pondweed, and coontail to get rid of. Thank you.