So far what I've found is Talapia are the only fish left because of the high salt content. Corvina, groupers and others have all died off. Also it seems the best fishing is June to September, when the water is very hot. There are no outlets so the only way for water to leave is by evaporation. The water that goes in is fresh water but there is too much salt for that to make a difference. I'm gonna do a lot more research on this . Jim