I'm glad to get you addicted! They have a tank that is about a month old and the inhabitants you are seeing are newly purchased I assume they are in that tank. From the first post I don't think the 160 is even up and running. How exciting though! I guess I'll see ya'll at the store soon for lots of rock As far as the blue hippo goes....he is a little guy so it is possible he has a good hiding spot. I wouldn't worry too much about him just yet. He might reappear and you'll never know where he was hiding at. I'm sure I will see ya'll soon and lots of luck with the new tank setup!!

Jen