ok thanks. What do you all think of a fountain areator???? according to local water people here it does bot for the fountain and to help fish When I told them I wanted it for the fish not for me they just grin and explain this does both. even in the broucures it talks about fish kill and all that and says its great for ponds. Am I making another mistake by thinking the people who do this kind of stuff for a living know more about it than me? I have done a little research and tend to overkill before I buy.