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 05-10-2011, 01:28 AM   #1
Aquarium Advice FINatic
 
Batt4Christ's Avatar
 
Join Date: Apr 2011
Posts: 634
Canister Filter ??? UV....???

Been looking at some of the imported canisters on eBay that others here have reviewed positively and noticed that some have UV sterilizers built-in...

What practical application for a FW aquarium might there be?
__________________

__________________
Batt4Christ is offline   Reply With Quote
Old 05-10-2011, 03:51 AM   #2
Aquarium Advice Addict
 
Mr. Limpet's Avatar
 
Join Date: Mar 2011
Location: Northern California (Marin)
Posts: 4,505
Quote:
Originally Posted by Batt4Christ View Post
Been looking at some of the imported canisters on eBay that others here have reviewed positively and noticed that some have UV sterilizers built-in...

What practical application for a FW aquarium might there be?
Are you only asking about UV sterilizers, or a specific filter mfg.?

UV sterilizers are supposed to help with water borne algae mainly, but there's also claims that they kill parasites and pathogens. Most will say they are of questionable value because the water needs to be in contact with the UV light long enough to kill whatever is passing by. IMO filter water moving at 300/450/+ gallons per hour isn't going to give the UV's enough time to do much of anything.
__________________

__________________
Mr. Limpet is offline   Reply With Quote
Old 05-10-2011, 11:51 AM   #3
Aquarium Advice FINatic
 
Batt4Christ's Avatar
 
Join Date: Apr 2011
Posts: 634
Mr. Limpet - I was just curious if there is any real value to a UV sterilizer in one of the filters (and you pretty much backed up my theory on those things anyway).
__________________
Batt4Christ is offline   Reply With Quote
Old 05-11-2011, 12:56 AM   #4
Aquarium Advice Apprentice
 
Mr.Micro's Avatar
 
Join Date: Apr 2011
Location: Lemont, Illinois
Posts: 45
The theory of it being in the filter is to sterilize the microbes as they are trapped on the media. Even outside the filter UV sterilization is very effective method of controlling disease and microbe outbreaks and at the very least, creating a natural environment. Afterall, the ocean has the sun.

In a repeated, constant flow the UV can handle the microbial load of the tank. Of course the slower the flow, the better.

Think of it this way, a human can potentially consume an entire years worth of radiation consumption in an hr., if exposed to a source that was emitting that amount consistently. How long do you think it would take a microscopic particle to reach it's max exposure if the source was amplified by, say something as small as 10x, if only exposed for a second. Now if these particles are trapped on a filter and have constant exposure, how effective would that be.

UV sterilization is used in air filtration, eg; hospitals use it to prevent bacteria/viruses from traveling room to room. Food packing plants use it to control bacteria, especially on chicken. That food is moving on a conveyor belt and may only have a 1-2sec exposure. And of course, water purification plants use UV sterilization too..

UV sterilization was used on a global scale to control bacteria and virus when hurricane Katrina hit N.O. and when the S.A.R.S. virus hit China.

Check out one of the leaders in the industry @ rgf.com if you want to learn more.
__________________
An eye for an eye, will make the whole world blind!
Mr.Micro is offline   Reply With Quote
Old 05-11-2011, 01:50 AM   #5
Aquarium Advice FINatic
 
Batt4Christ's Avatar
 
Join Date: Apr 2011
Posts: 634
I'm confused- if your canister is functioning as both a mechanical and a biological filter, wouldn't UV then be a "bad" thing? How dies nitrifying bacteria live in that environment? Or am I missing an important part of the equation?
__________________
Batt4Christ is offline   Reply With Quote
Old 05-11-2011, 03:14 AM   #6
Aquarium Advice Addict
 
Mr. Limpet's Avatar
 
Join Date: Mar 2011
Location: Northern California (Marin)
Posts: 4,505
Quote:
Originally Posted by Mr.Micro View Post
The theory of it being in the filter is to sterilize the microbes as they are trapped on the media. Even outside the filter UV sterilization is very effective method of controlling disease and microbe outbreaks and at the very least, creating a natural environment. Afterall, the ocean has the sun.

In a repeated, constant flow the UV can handle the microbial load of the tank. Of course the slower the flow, the better.

Think of it this way, a human can potentially consume an entire years worth of radiation consumption in an hr., if exposed to a source that was emitting that amount consistently. How long do you think it would take a microscopic particle to reach it's max exposure if the source was amplified by, say something as small as 10x, if only exposed for a second. Now if these particles are trapped on a filter and have constant exposure, how effective would that be.

UV sterilization is used in air filtration, eg; hospitals use it to prevent bacteria/viruses from traveling room to room. Food packing plants use it to control bacteria, especially on chicken. That food is moving on a conveyor belt and may only have a 1-2sec exposure. And of course, water purification plants use UV sterilization too..

UV sterilization was used on a global scale to control bacteria and virus when hurricane Katrina hit N.O. and when the S.A.R.S. virus hit China.

Check out one of the leaders in the industry @ rgf.com if you want to learn more.
But isn't the important issue the amount of time the water is exposed to the UV? A hospital, food processor, etc can control the flow to a point that it does some good. But a high flow filter is, well high flow and not effective from the reviews I've read, most users were disappointed in the results.

What do you think of this unit Amazon.com: Green Killing Machine 9 watt Internal UV Sterilizer with Power Head: Sports & Outdoors ? This is something that I think makes better sense as you can set the flow rate and the UV has a chance to kill what it is supposed to.

I went to the rgf website, but didn't see any aquarium units, is there something I'm missing? FYI: The chances of catching something (air borne, etc) in a hospital and getting sicker than when you went in, is actually pretty good. So I'm not sure that's a good analogy lol.
__________________
Mr. Limpet is offline   Reply With Quote
Old 05-11-2011, 11:00 AM   #7
Aquarium Advice Apprentice
 
Mr.Micro's Avatar
 
Join Date: Apr 2011
Location: Lemont, Illinois
Posts: 45
On a trlp to Iowa.. Will respond to this in afternoon from hotel.
__________________

__________________
An eye for an eye, will make the whole world blind!
Mr.Micro is offline   Reply With Quote
Reply

Tags
canister, canister filter, filter

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
Canister filter vs. HOB filter for a planted tank fort384 Freshwater & Brackish - Planted Tanks 11 02-02-2009 01:09 AM
Canister filter vs. HOB filter SHIFT_Unique Freshwater & Brackish - General Discussion 14 09-22-2006 01:40 AM
Filter Floss in an Eheim 2026 Canister Filter hforney General Hardware/Equipment Discussion 6 02-27-2005 02:28 AM
Via Aqua Canister vs Fluval Canister Filter? TygGer General Hardware/Equipment Discussion 15 09-19-2004 02:09 AM
live rock filter or canister filter? bschnuck Saltwater Fish Only & FOWLR 3 06-17-2004 04:48 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 05:22 AM.


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