Go Back   Aquarium Advice - Aquarium Forum Community > General Aquarium Forums > General Hardware/Equipment Discussion
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 01-22-2012, 05:01 PM   #1
Aquarium Advice Addict
 
TigerBarbs's Avatar
 
Join Date: Jul 2011
Location: Florida
Posts: 1,212
Whats a plenum?

Was lookin online at live sand and the word plenum came up. It was an egg crate thing under live sand. What does it do?
__________________

__________________
TigerBarbs is offline   Reply With Quote
Old 01-23-2012, 05:56 PM   #2
Aquarium Advice Addict
 
Rutrag's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA
Posts: 1,133
A plenum is basically a water space below the substrate with very little water circulation. The idea is that the water in there has little to no oxygen which is the environment in which denitrifying (?) bacteria thrive. These are the ones that trun nitrate (the end product of the nitrogen cycle in an oxygen rich envrinment) into nitrogen and other products. I've read mixed reviews from folks who have used them, and most people beleive you accomplish the same thing or better with just a deep sand bed. I've never tried one, so I can't speak from experience at their function.
__________________

__________________
It is a violation of federal law to use this product in a manner inconsistent with its labelling.
Rutrag is offline   Reply With Quote
Old 01-23-2012, 05:59 PM   #3
Aquarium Advice Addict
 
TigerBarbs's Avatar
 
Join Date: Jul 2011
Location: Florida
Posts: 1,212
O okay thanks
__________________
TigerBarbs is offline   Reply With Quote
Old 01-23-2012, 08:42 PM   #4
AA Team Emeritus
 
Wy Renegade's Avatar


 
Join Date: Jan 2008
Location: Wyoming
Posts: 4,714
Rutrag hit the nail right on the head; a plenum is a plastic barrier of some type which creates a anaerobic zone at the bottom of the aquarium. Generally because of the lack of oxygen, this zone also is more acidic than normal. The value of using one, is as stated, greatly debated with many saying they get the same results from a properly set-up DSB.

Here are a couple pictures for you:







__________________
the Bog

"Listen to some of these guys talk, and it's like they were born from their momma's belly with a fishkeeping encyclopedia in one hand and an API kit in the other" (unrevealed).
Wy Renegade is offline   Reply With Quote
Old 01-23-2012, 08:49 PM   #5
Aquarium Advice Addict
 
TigerBarbs's Avatar
 
Join Date: Jul 2011
Location: Florida
Posts: 1,212
Thanks guys! Just curious as to what they were and the whole idea of one. Got it now ,.
__________________
TigerBarbs is offline   Reply With Quote
Old 01-24-2012, 03:32 AM   #6
Aquarium Advice Addict
 
Join Date: Jan 2006
Location: Cumberland, MD
Posts: 2,444
I've seen a couple different brands of filter media turning up lately that claim to support anaerobic bacteria for denitrification. No clue whether they're useful, but I think I'll just stick with water changes.
__________________
toddnbecka is offline   Reply With Quote
Old 01-24-2012, 05:09 AM   #7
Aquarium Advice Newbie
 
Join Date: Jan 2012
Posts: 1
nice things...it's like a focus..when you have understood how it works everithing become very simple
__________________

__________________
pdf converter
BrittneyFranco is offline   Reply With Quote
Reply

Tags
plenum

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sand grain size for deep sand bed Hondatek Saltwater Reef Aquaria 19 11-15-2011 07:15 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 06:47 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.