I think HexBug Aquabots 1.0 set off a fish frenzy in toy fishes, and now the new models are out. The 2.0 fish feature light up glow, and tap on tank wake up ness. The new bonus bowl works a little better too as its rounded, but it could be slightly deeper though. A couple coral features also tech up the tank. Totally get one of these for your desk, they are lots of fun!