I enjoyed reading your thread very much and found alot of good info.I have used the Oxygenator for several years and have always believed it worked and still do. We fish aproximately 14 - 16 tournaments a year and use it in every tournament. We have lost a few fish but not more than normal. I most always add chemical to my livewell and know it contains salt but have had no adverse effects that I can tell. I have tried to keep minows in the baitwell overnight in the boat and found that it they are all dead in the morning. It was my thinking that it was because of too much oxygen produced. So maybe the jury is still out. I see from your profile who referred you to this site. He is a very good freind of mine and I know he uses Oxygen. Your article is very interesting and informative. Thanks.