So I got a free 75g aquarium that's only two months new, (I actually sold the tank retail to the guy who ended up wanting a bigger tank two months later so he gave me the 75g) and put it on my side yard. I wasn't thinking that one of my two 75g is pretty old and needs to be replaced so it's been sitting there for about two months now and someone in my family (yet to come forward) put some water in it and left it so we had a little mosquito issue which my mom tried and succeeded in eliminating with bleach. Fortunately is wasn't a lot of bleach and I'm in the process of cleaning it out and leak testing just to be safe but I wasn't sure exactly how I should be sure I've removed the bleach. I was planning on using vinegar and scrubbing it out after I rinse it a few times. Am I going about it correctly or is there something I should do differently? Any input is appreciated, thanks.