i am looking at getting a used prostar 90. I am weary about getting another used tank as I had a 60 gallon cube bust a seam on me back in Jan. Had the tank running for 6 months and water went everywhere! So now I am getting back into it and found this prostar 90 which seems like a good deal. Wanted to see if anyone had any opinions. Cost is $500 for the set up. Let me know what you think!