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	Jaubert / Plenum Cavity
Week End Big Fish Posts: 414 Kudos: 436 Votes: 1 Registered: 16-May-2004	I believe many fish guru's here know what this is...in short words this is a complete natural system for breaking nitrate that doesn't even need to use a single pump.... it involves producing a layer of dead still water at the bottom of the tank below layers of sand which is low in oxygen where denitrifying takes place(an anaerobic layer) , oxygen from NO3 will be consumed and plain nitrogen gas is released. This system claims that it can avoid the need to do ANY water change, (maybe just 1 every 6 months). Well it is reasonable if it can really remove nitrate. Anyone know more about this system? and any comments?
Posted 26-Jan-2006 11:20
kamikaze76 Hobbyist Posts: 63 Kudos: 62 Votes: 69 Registered: 24-Aug-2004	From what I have read, the Jaubert system cannot be directly related to a home aquarium, because he used extremely large aquariums. In order for a plenum system to work for the hobbyist, you need to have a skimmer. There have been many adverse things written about this system, one being that the dead spots in the plenum are a breeding ground for detrimental bacteria that can produce infections, like ick. One source of good information is this link here: http://www.athiel.com/lib4/plenum2.htm Hope this helps. John
Posted 26-Jan-2006 11:20
pmdaggett Enthusiast Posts: 191 Kudos: 169 Votes: 1 Registered: 25-Jul-2004	Very true statement. Another issue is traped oxygen which is deadly to a smaller system, even some larger ones. From the books I've read, I would have to say that the Jaubert technique is outdated, unless you plan on having a tank thats 300g plus.
Posted 26-Jan-2006 11:20


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