First fish tank here...I had a musk turtle for 33 years (age 6 to 39) who died earlier this year. After letting her tank empty, my kids won some goldfish at a local carnival. They got sick unfortunately and we rehomed them for better care. After doing some research and becoming more interested, I picked up 12 long fin white cloud mountain minnows. They're in a 20L with some Gobi rock, four plastic plants, a Tidal 55 filter (pre filter sponge, internal sponge, polishing pad, purigen, and matrix) and a medium sponge filter. I've had them 2-3 weeks now and am feeding xtreme nano pellets and frozen bloodworms once a week. I'm going to add in a hillstream loach as soon as my lfs gets them in. I've already had a lot of good help here, just figured I'd post here as well.