Would you mind telling me which species you own, and if you own or have owned more than one species, which is your favorite? Pictures would be great too! I'm considering them for my 20 high since they'd be unlikely to harm any shrimp, as well as the fact that they are adorable. But I don't know which species to aim for. I have time; probably won't get them until August or September. But curious what species everyone else has or prefers. Thanks!