On Saturday, I had a fascinating visit with Nippon's Jedi Fish Master, Nathan. I told him I was interested in some Otos to complement the shrimp in Asgard. He recommended a couple of Crossocheilus siamensis, Siamese Algae Eaters. Like Rasboras, Danios, and Barbs, they're cyprinids. They are famous for eating hair algae (yes!) and will even eat planarian -- or aquatic -- flatworms.

I bought 2 specimens. Their names are Thor and Loki, in keeping with the Asgardian theme. Right now, they're about 2.5 inches, but grow to a full length of just over 5 inches. That will be way too big for Asgard, so I plan to move them to the 10g Tetra tank one of these days (don't ask me how, given the profusion of hiding places in Asgard).