The pipe for the waterfall runs up under the cork, and the cord runs to the left of the cork so if I need to replace the pump I can with out removing the cork. To be honest I put the pipe in the cork after it was in the tank. I had planned on using a piece of drift wood for a waterfall, but it was too big, and took up too much room in such a small tank. The pump is just in the gravel in this tank in the lower left, back corner. I drilled a hole in the cork and fed the pipe in from the top then cut it to length. I let the gravel filter the water, and I plan to change it every month. It only has about a 1/2 gallon in it.
Hope that helps, I can get some close-ups later today if you would like.
-----
Kyle
1.2.0 D. leucomelas
0.0.2 D. azureus
1.0.1 D. imitators