In my 29g, I have 2 species of fish. There's 5 Harlequin Rasbora's and 5 Cherry Barbs. Also, there's 4 ghost shrimp, too. I was thinking about a Dwarf Gourami, but I looked into Kribensis and they seem like they would work. Although, I may only get one. I checked on AqAdvisor, too. Now, what are...