I misspelled Killifish in my above intro and wanted to correct this, and share the official website for the AKA (American Killifish Association) site:
http://www.aka.org/
For those of you who may never have seen these beauties, check out their Gallery. If you appreciate the beauty and variety of Guppies I'm sure you will find these to be the 'royal' version, though they are not related. These are egg layers.
I've never had the pleasure to house the Bumblebee Goby either, but always wanted one. Since my freshwater aquariums had some bullies like African Cichlids, these 1 1/2 inch cuties might have been viewed as 'food'! They are little toughies themselves, but just too small for the big mouths I had to feed. Here's a few sites that have nice pics:
http://www.aquahobby.com/gallery/gbumble.html
http://www.aquazoo.co.uk/page.cfm/Type=Fish/ID=239
And just an added thought, if Terrariums are ever created, maybe a few Mudskippers would be fun
