ghbrewer;934008 wrote: It will probably depend largely on the space you have for it in your sump, but frrom what I have read (and I have been reading about it a lot for my new build) a Remote Deep Sand Bed (RDSB) can be VERY beneficial for Nitrate reduction, if configured properly. From my research, it seems that a sand bed of about 6"-8", with a good amount of flow (not too much as to reduce particulates from settling, you want particulates to settle) and a large population of certain sand sifting critters (Bristle worms, Pods (All sorts), Nassarius Vibex, Cerith, & Planaxis Snails, Florida Fighting Conch, and Bristle Stars). Read this article (http://www.reef-eden.net/DSBs.htm">http://www.reef-eden.net/DSBs.htm</a>), I felt that it gave a good amount of information.
I am planning on a non-lit RDSB for my new system ([IMG]http://www.atlantareefclub.org/forums/showthread.php?t=88450">http://www.atlantareefclub.org/forums/showthread.php?t=88450</a>)
I just spoke with a member yesterday that said he had such great success with his RDSBs, that his skimmer pretty much quit working. I am not saying this will be the case in every tank, but is a testament to their effectiveness.
What size are your tank and sump? How much total water volume is in the system? What size space do you have to work with in the sump, where you would put the DSB?
Too small a DSB may not make a noticeable difference, while too large may not make sense economically (potential benefit versus cost).[/QUOTE]
Thank's
i want create DSB in a compartment of my Sump, dimension of compartment is 20 x 20 centimeters, and height 25 centimeters.
Height of sand will be 6", non lit, flow of water will be generate from return of water of the tank (so the sediment will go on the DSB......by feeding) or Hydor Nano Koralia 900 liter/h.
Edit: [QUOTE=][B]gennariello73;934073 wrote:[/B] Thank's Grant
i want create DSB in a compartment of my Sump, dimension of compartment is 20 x 20 centimeters, and height 25 centimeters.
Height of sand will be 6", non lit, flow of water will be generate from return of water of the tank (so the sediment will go on the DSB......by feeding) or Hydor Nano Koralia 900 liter/h. i will use calcium Carbonate, hoping that it releases calcium[/QUOTE]