I was sitting on my computer when I heard the aquarium start making a weird sound behind me. Assuming it was a snail near the return nozzle, I didn't think much of it but turned around to see anyways. Glad I did, because this is what I saw: my lone BTA cruising around on the shell of a snail.Sorry about picture quality, all I have is my phone. Not sure if anyone else has seen this in their aquarium, but it gave me a smile tonight.