I have read some threads on here regarding application of alum/lime and quite frankly makes me a bit nervous. I know a Secchi disk will qualitatively give me an idea if there is a problem but I suppose an actual water analysis should be done before putting something in the pond. I am only 55 miles from A&M so it should be easy enough. I think this thread has motivated me to take some action or at least determine if action needs to be taken - my wife will be so thrilled.......................