I dug a ½ acre pond two years ago and in beginning the water was soooo clear you could see 6 foot down. Now I have added 150 catfish,30 bass and 200 bluegill and thousand minnows. Now the water is soooo muddy you can't see 6 inches down. My question to the forum is Are the catfish causing the muddy water? Are is there anything I can do to clear up the water?