(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 2. Schematic representation of a tubeworm maintenance aquarium. Sulfide
dissolved in synthetic seawater (SSW) was introduced into the
polyvinylchloride (PVC) hose, which was connected to PVC grating. The sulfide
diffused out from the grating through the crushed coral and sediment layers.
The aquarium was filled with SSW, which was kept aerated and filtered.