Have had fish for the past 5 or so years but nothing too major. Got the bug for a DIY project at home and got a fixer upper tank off craigslist with stand for $75. 75g bowfront taken apart, cleaned and joints and seals re-done. Trying to do all DIY projects for it: filtration, lighting, etc.... Wife wants to try a marine FOWLR, but im thinking chichlids or a puffer. Any suggestions appreciated