Go Back   Aquarium Advice - Aquarium Forum Community > General Aquarium Forums > General Hardware/Equipment Discussion

Join Aquarium Advice Today
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
Old 06-29-2008, 11:43 PM   #1
Aquarium Advice Apprentice
Join Date: Jun 2008
Posts: 10
difference btw, RO & UV

whats the difference between a RO and an uv sterilizer?

kariina is offline   Reply With Quote
Old 06-29-2008, 11:55 PM   #2
Aquarium Advice Addict
Join Date: Aug 2006
Location: not here anymore
Posts: 5,338
RO stands for Reverse Osmosis, and is a type of filtration done on tap water to make it pure. More or less, water is pushed through a really really fine membrane and the membrane only lets the pure water get through. People use RO (normally combined with a DI stage) to make pure water to add their salt mix to, and for freshwater top offs.

A UV sterilizer uses ultraviolet light to sterilize the water. It doesn't filter it, or take out any heavy metals - it just kills anything alive in it. UV sterilizers need regulated flow through them - if the flow is too fast, stuff isn't killed. People use UV to help kill off disease or any nasty things in their water.

Kurt_Nelson is offline   Reply With Quote
Old 06-30-2008, 01:02 PM   #3
AA Team Emeritus
cmor1701d's Avatar

Join Date: Feb 2003
Location: Belle Mead, NJ
Posts: 7,814
In addition to what Kurt said I consider a RODI unit to be essential. I have a UV unit which is not turned on. One of these days I will remove it from the system, but I have to run a new return water line to do that.
cmor1701d is offline   Reply With Quote
Old 07-03-2008, 11:56 AM   #4
Community Admin
melosu58's Avatar

Tank of the Month Award
Join Date: Oct 2004
Location: Virginia
Posts: 37,888
As the others have said they are two entirely different things. One is a water filter and the other is a light that kills parasites and algea spores that travel through the lighted chamber. Read these.

Introduction to Aquarium UV Sterilizers

Choose the best reverse osmosis unit for your needs

How to Use Reverse Osmosis in Your Aquarium

BTW moving this to the General hardware and equipment discussion forum.
melosu58 is offline   Reply With Quote

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
what is the difference: saltwater & reef & marine? Bubble_B0y Saltwater Reef Aquaria 2 08-20-2005 09:23 AM
Difference b/w Sun Coral & Yellow Polyps badfish Saltwater Reef Aquaria 11 07-03-2005 11:30 AM
Difference between a molt & dead crab? havefun Saltwater Reef Aquaria 15 05-07-2005 04:13 PM
Difference b/w Free & Total Ammonia tests badfish Saltwater & Reef - Getting Started 3 03-16-2005 09:43 PM
Reef or Saltwater-- what's the difference? & Seahorses BettaLisa Saltwater & Reef - Getting Started 11 11-14-2003 08:14 PM

» Photo Contest Winners

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2012 Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 08:02 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.