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Unread 03/27/2008, 09:34 AM   #1
widmer
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What's your reason for not doing a plenum?

I know the majority of the reefers embrace the "techy things" involved with reefing, ie protein skimmers, wacky lights, custom sumps, fill-in-the-blank reactors. But close to no one has a plenum. I'm just curious why...


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Unread 03/27/2008, 10:09 AM   #2
hottuna
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widmer : alot of people have them...many years back they got a bad rap ...and so those who have keep a low profile...I have used this method for years with good results..I even have one tank with.....an undergravel filter ...AHHHHHH !!! reef blasphemy..according to some...


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Unread 03/27/2008, 10:16 AM   #3
widmer
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Why'd they get a bad rap?


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Unread 03/27/2008, 11:25 AM   #4
seapug
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They were very popular for a while but studies have shown they don't really have any advantage over a deep sand bed without a plenum or having a good quantity of live rock in the display. Also, to work correctly you need to keep a large portion of the sandbed exposed and a good 4 or 5 inches of sand above the plenum. That can lead to a significant portion of a typical sized tank being devoted to the sand bed and plenum.


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Unread 03/27/2008, 01:50 PM   #5
hottuna
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studies... schmudies....in some cases they work great...
in others they dont...

people with soft tap water report very good results...


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Unread 03/27/2008, 01:58 PM   #6
seapug
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I'm not saying they don't work, I'm saying it's been scientifically proven they aren't needed.


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Unread 03/27/2008, 02:03 PM   #7
Randall_James
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Quote:
Originally posted by seapug
I'm not saying they don't work, I'm saying it's been scientifically proven they aren't needed.
+1 just one of many things that went the way of the gravel filter...


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Unread 03/27/2008, 02:09 PM   #8
hottuna
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Randall james....you might try that undergravel filter line on tropicorium in detroit...a succesful coral farm that still uses them,deep aragonite beds,and plenums....


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Unread 03/27/2008, 02:14 PM   #9
hottuna
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Randall james....you might try that undergravel filter line on tropicorium in detroit...a succesful coral farm that still uses them,deep aragonite beds,and plenums....and G.A.R.F in boise idaho ...is plenum central...


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Unread 03/27/2008, 02:56 PM   #10
Randall_James
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And you are telling me that Rick (well you know he no longer runs the business, his boy does) is using UWG filters on his prop tanks?

GARF: you need to go visit that site before saying too much (I have)


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Unread 03/27/2008, 03:10 PM   #11
SDguy
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aesthetics...they use up a lot of realestate in the tank and look rather unattractive.


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Unread 03/27/2008, 03:22 PM   #12
tmz
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hey folks, name dropping and other schmudies don't teach much. How about a brief discussion of how they work and the adaptabliity or lack thereof to a display tank. What is quite functional in a coral farm may not be functional at all in a reef tank.I don't think anyone thinks they can't work with proper advection and the right supply of low oxygen water.


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Unread 03/27/2008, 03:29 PM   #13
willjeff
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I don't want to give up the space in my display.


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Unread 03/27/2008, 04:40 PM   #14
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I don't have one because there is no evidence they actually *do* anything. I don't find the fact that there are people who have successful tanks with plenums persuasive at all -- I'm sure there are people who have successful tanks with canister filters, but that doesn't mean they are a good idea, or that anyone should rush out and add one.


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Unread 03/27/2008, 09:06 PM   #15
hottuna
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randall james...rick?? more like Dick isnt it???

Added by mhurley.....I'm tired of getting post reports on this. For those that don't know, the company owners name is Dick Perrin...not Rick...That's what he's clarifying here.


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Unread 03/27/2008, 09:18 PM   #16
hottuna
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randall james : go to tropicoriums website...click on fish...click on baby perculas...and what is that we see in the tank??? could it be an undergravel filter???


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Unread 03/27/2008, 09:55 PM   #17
OnoIgotICH
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you can cycle a tank by putting a urine covered brick into the tank, dont mean i'll do it...someone else did


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Unread 03/27/2008, 10:06 PM   #18
just dave
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I remember the arrival of the Jaubert ( Monaco) method very well. Down the road it became know as the Plenum Method and NNR Method as certain "authorities" took it , massaged it , repackaged it, and represented it as their own. IMO the downfall of it is that similar results can be obtained without the sacrifices resultant from its use. I came into the hobby when live rock was stacked on egg crate platforms and spray bars were employed to blow the debris out from under the platforms to the front of the tank for easy removal. Denitrators were used along with wet drys and cheesy little counter and co-current air driven skimmers. Since that time I've seen air driven skimmers, bare bottom tanks with rock elevated off the bottom,and denitrators resurface back into the hobby. I can't wait for the reinvention of the wet dry, Jaubert method, Lee Chin Eng method, and God knows what else to be presented to the aquarium community.


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Unread 03/27/2008, 10:30 PM   #19
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A urine covered brick??? Why didnt they just pee in the tank and leave the brick on the floor like most people do? Ooooh I get it now... it must have been one of those hardcore reefer chicks we always hear about.

Where are you hangin out, OnoIgotICH? You must have some far-out friends over there.

I know several old school reefers who use plenums and undergravel filters with crushed coral in large set ups. They deffinately work because their tanks have no skimmers or DSB yet they are just as nice as other tanks. They are very stable too.


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Unread 03/28/2008, 07:52 AM   #20
LobsterOfJustice
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Quote:
Originally posted by just dave
similar results can be obtained without the sacrifices resultant from its use.
+1


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Unread 03/28/2008, 09:17 AM   #21
hottuna
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Randall james : is keeping a low profile today........


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Unread 03/28/2008, 09:17 AM   #22
jimwat
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Too ugly for a display tank (IMO). And no guarantee that it will actually work.


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Unread 03/28/2008, 09:20 AM   #23
Toddrtrex
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HotTuna --- Just a suggestion, you may want to cut back a bit on the attitude.


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Unread 03/28/2008, 09:20 AM   #24
hottuna
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randall james: go to page 1 of GARF....what is the first line? something about building a bulletproof reef?? click on it...

its all about plenums !!!

so what are u talking about???


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Unread 03/28/2008, 09:23 AM   #25
hottuna
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toddtrex :this guy made several wrong assertions above...he needs correction...
i dont give attitude unless someone gives it to me first...and usually i just "let it go" for the sake of keeping peace here.
re read the whole thread...


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