I just joined after lurking for a couple of weeks. Right now I have a 55 gallon tank with a Marineland C-360 filter and a Whisper 30-60 filter, gravel substrate, and mainly live plants. the tank is stocked with 5 neon tetras for now, 5 Harlequin Rasboras, 5, Zebra Danios, 3 Swordtails (1 male), 4 Peppered Cories, 3 Panda Cories, and 4 Oto's. I'm hoping in the future to upgrade to around a 125 gallon in the future.