Jaubert Plenum Filter
Figure 10.1
Natural Systems for Maintaining Anemones
Top: In the Jaubert System a perforated plenum isolates a body ot water within the deep gravel bottom substrate. A screen located about one and a halt inches (4 cm) above the plenum prevents burrowing organisms from digging deep enough to expose the plenum. Strong light, live rock, and water circulation via air stones or pumps are used. See volume one for additional information.
Middle; in this variation the same plenum system is used, but water drains off the surface into a sump below the aquarium. A pump returns the water. Activated carbon may be located conveniently in the sump. Although we do not show a protein skimmer in these diagrams, one could be used. In the top and bottom examples the skimmer could be an internal model, or an external one with a water pump. In the middle design an external skimmer would best be installed so that the surface skimmed water drains through it on the way to the sump. See volume one for diagrams of skimmer installations.
Bottom: The "old fashioned" under-gravel system also works well for maintaining anemones. In this system airlift sends water up through a pipe connected to the perforated plate. This effects a water circulation within the tank and through the gravel. For the health of the anemones strong light and water motion are also used. Live rock, though optional, helps to establish a diverse community of microorganisms, providing a more stable environment.
Activated Carbon
Strong Light
Strong Light
Undergrave! Filter
Live Rock
Screen
Live Rock
Air Pump
Air Lilt
Air Pump
Surface Drain
Activated Carbon
Undergrave! Filter
Live Rock
Coarse Sand or Gravel
Screen
Strong Light
Live Rock
4" of Coarse Sand
Strong Light
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