I have a low tech/non CO2 55 gallon. It's planted heavily with low/medium light plants. I run T-5NO lighting, eco-complete with root tabs, seachem flourish, iron, and pottasium. I have a ton of RCS, some neons, rasboras, oto's, panda garras, amano shrimp, albino bristle nose pleco, and endler livebearer's.
I have a aqueon evolve 4 gallon that's waiting to be set up. Also, a small garden pond (200 gallon) with waterfall that has anacharis, water lily, water lettuce, water hycianth, umbrella plant, star grass, arrowhead, spike rush. I have three shubunkin's, a ton of snails, and some frogs that made home there.