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04-25-2005, 04:54 AM
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#1
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Little Fishy
Join Date: Mar 2005
Location: Essex, UK
Posts: 98
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Can DSB's be TOO deep?
Hi All
I am adding a DSB to the sump/fuge of my new 150G setup and was wondering if iy van be too deep? I am planning on using around 9 - 10" if argonite sugar fine sand and teh fuge will be lit 24x7 using two 24" 15watt NO tubes. The DSB is 24" long, 18" wide and as I said around 9" deep. It will have around 8" of water over it fed by two 1000 l/hr pumps, one of which is the output from the skimmer
Does this sound ok?
Cheers
AD
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04-25-2005, 05:08 AM
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#2
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Master of Perplexity
Join Date: Jun 2003
Location: panama city beach FL
Posts: 3,432
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Weeeeell, people do it, not sure how necessary it is. I'd be a little concerned with the flow you have across it, that seems like a lot. You may have problems with sandstorms. Also, you might not get the desired action out of your refugium with only NO fluorescents. I was surprised when I changed out to PC's how much better the macroalgae growth was.
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04-25-2005, 05:11 AM
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#3
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Little Fishy
Join Date: Mar 2005
Location: Essex, UK
Posts: 98
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thanks. Both of the pumps are variable speed and will go down to 200 l/hr if needed. The one for the skimmer needs to stay on full but the other is only really in there for helping with water changes so I can turn it off if need be. Will keep that in mind about the lights. I can always move them to the QT I have setup and replace them with PC lights. What sort of wattage would you suggest?
Cheers
AD
Edited to say, Note the flow rate was l/hr not GPH -do you still think it is too high? The pumps in the main tank are 1 x 3500 l/hr sump return and 2 x 6500 l/hr CL's |
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04-25-2005, 06:10 AM
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#4
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Admin/ Super mod
Join Date: Aug 2003
Location: New Castle, Delaware
Posts: 20,200
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the conversion from us over here is L X .26 = gallons
your 1000L pump is doing 260 gph. not too bad i think for the sand bed, but you said uyou could adjust it when needed to.
__________________
Tim
need something to read? just ask me.
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04-25-2005, 09:02 AM
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#5
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senior member
Join Date: Jan 2000
Location: Walnut Grove, SC, USA
Posts: 13,301
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This can work, but I am just curious, why do you want such a deep sand bed?
__________________
Tom <"))))>(
(TDWyatt)
Wise men speak because they have something to say; fools, because they have to say something. -Plato
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04-25-2005, 09:08 AM
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#6
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Little Fishy
Join Date: Mar 2005
Location: Essex, UK
Posts: 98
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No technical reason - just working on the basis that more is better 
If it makes no difference then I can leave it at say 6 - 7" and save some sand.... |
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04-25-2005, 05:30 PM
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#7
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BIG SMELLY MOD
Join Date: Dec 2004
Location: Livingston Parish, Denham Springs, Louisiana
Posts: 16,775
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I have had DSB's but that is deep , I guess it will work.
Vince
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04-25-2005, 06:27 PM
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#8
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Moderator
Join Date: Nov 2004
Location: Montana
Posts: 5,414
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It won't not work, that's a lot of sand!
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~Vince
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04-26-2005, 02:58 AM
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#9
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Little Fishy
Join Date: Mar 2005
Location: Essex, UK
Posts: 98
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So, just to clarify, what depth should I be aiming for? 6"?
Cheers
AD
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04-26-2005, 06:18 AM
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#10
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BIG SMELLY MOD
Join Date: Dec 2004
Location: Livingston Parish, Denham Springs, Louisiana
Posts: 16,775
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6" DSB will work.
Vince
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04-26-2005, 06:56 AM
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#11
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Little Fishy
Join Date: Mar 2005
Location: Essex, UK
Posts: 98
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cool. I will give that a whirl
thank you
AD |
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04-26-2005, 07:52 PM
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#12
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Little Fishy
Join Date: Mar 2005
Location: north hollywood ,ca
Posts: 412
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would 10" be better? Don't want a dsb just curious!
__________________
"the guy behind the guy behind the guy"
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04-26-2005, 08:00 PM
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#13
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Little Fishy
Join Date: Mar 2005
Location: Houston, Tx
Posts: 168
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Not really
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04-26-2005, 08:26 PM
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#14
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BIG SMELLY MOD
Join Date: Dec 2004
Location: Livingston Parish, Denham Springs, Louisiana
Posts: 16,775
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I don't think it will be better, I don't think it will help and I don't know if it can be a problem that deep.
Vince
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04-26-2005, 10:15 PM
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#15
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Moderator
Join Date: Nov 2004
Location: Montana
Posts: 5,414
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Only the first 2" of a DSB are where microfauna live, the rest is a depository for detritus. The deeper the DSB the longer before it needs to be replaced.
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~Vince
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