Hello, please excuse me if I am asking a previously asked question. I am new here. I just purchased a 75 gallon Marineland tank set up. I have had fresh water, brackish and saltwater tanks years ago but have not kept aquariums in a while. I was rather concerned when I later read reviews about the tanks leaking. I rarely heard about leaking tanks when I worked in a pet store. Is this something I should be concerned about?