I'm looking for stocking ideas that include interesting and oddball fish for the tank I'm setting up for my classroom. The only fish going in there for sure is a common Pleco that I took off someones hand for them. I need to get him out of that ten gal tank. Other then that I'm open. I was thinking about maybe getting a few Polka dot loaches because they're really cool looking fish and maybe a dragon Goby too. But I am really open to getting a interesting tank that middle schoolers would find interesting. Any Ideas. Thanks for your ideas. Future tank Specs: 55gal 4 ft long, 1 foot wide, almost 2 feet tall. Eheim classic 2213 filter Hydro ILH 300 watts Fine grain granite substrate (Chicken Grit) Plan on adding plants as well.