I have mentioned before that we have aquariums at work. Today I'm going to take you backstage, as it were, to see some of what goes into the maintenance of the larger one. Starting with an image of the tank without it's wooden hood:

The larger aquarium without the wooden hood

As you can see, there's a set of PVC pipe  that rings the top of the aquarium. At points along the pipe there are actually outlets where the water is vented out to create a partial current (you can see those more clearly if you click on the picture to see a larger size). And, if you look at the top of the picture you can see where the pipe enters the wall behind the aqaurium. And, on the other side of that wall you see:

The pumping station in the closet behind the aquarium

The pipe that comes out of the tub is pumped into the aquarium. You can see it coming out of the tub and going through the pump and then to the wall. The two pipes coming into the tub are from the overflow for the aquarium. In addition, the pump inside the tub is constantly agitating the water. This is a salt water tank and this agitation helps keep the salt water mixed. Finally we have the Reverse Osmosis system used to change tap water into pure water:

This is where the water for the tank comes from. Using Reverse Osmosis to change tap water into pure water

In addition, I got some new pics today:

I like this one where it appears there's a reflection but that's actually just another fish.

Ah well, peace, gentle readers