I want to start remaking an outdated aquarium. Let's start with freshwater, please. I'm still waiting, though, to see if someone can persuade me otherwise. Do you guys have any recommendations for a fantastic group of freshwater fish to put in the tank to start out with? It is a medium-sized tank. I'm looking for an easy-to-keep, colorful fish. Furthermore, some other animals that might help maintain the aquarium clean (e.g., snails etc). Finally, are there any reputable stores where I can find decorations for my ancient Roman/Atlantis theme? And do you have any suggestions about how to put a black backdrop on the back glass pane?