I am getting a free tank (I have seen it all set up and will be moving it myself, no leaks or anything). Along with it I am getting two, what I believe are severum. Right now the person who has the tank doesn't take care of it and the water is so cloudy, I have no idea if they really are severum or what. I have never had these fish(though I am sure that is what they are), ANY advice would be wonderful. They are well established fish already. If anyone would like to pass on helpful hints or whatever, that would be wonderful, thank you!!!!