Hey everyone, this is my first post on the forums (sorry if it's not placed in the right section). I purchased a 72 gallon bow front aquarium today with stand/filter/heater etc. The tank had never been used and had been sitting in the mans basement since the summer. I didn't look it over close enough and after removing some dust after the tank was returned home I found these cracks in the bottom of the tank. They are in 3 of the 4 corners, they are small (a few inches each) and they don't go all the way through the glass (can only feel them inside the tank...nothing on the bottom. My question is whether I can still use this tank or if is it scrap now? They look like scratches inside the tank but i'm not sure how this effects the structural integrity of the tank. So i'm looking for any advice, is it ok? Is it garbage? Can I fix the tank somehow to improve it? The brand is Oceanic. Thanks for your time and any help/advice!