Hello- I just picked up a 150 gal drilled tank that was used in a salt water set up prior. The owner gave it a vinegar bath and told me it is set for fresh water, is that true? My next step is to buy a filter for it and was not sure sure if I should plug the holes and use a fluval, rena, etc? Or if I should utilize the drilled holes and set it up that way. What path should I take? What is better? What are the best brands? I have no idea what products I would need for the drilled set up. Thank you for your help in advance!