Distilled water vs RO/DI vs tap - Tropical Fish Keeping - Aquarium fish care and resources
View Poll Results: Which type of water do you prefer to use?
Dechlorinated Tap Water 7 63.64%
Reverse Osmosis Water 1 9.09%
De-Ionized Water 1 9.09%
Distilled Water 2 18.18%
Voters: 11. You may not vote on this poll

LinkBack Thread Tools
post #1 of 4 Old 01-25-2007, 03:55 PM Thread Starter
FDStation152's Avatar
Distilled water vs RO/DI vs tap

Well I was just wondering what kind of water everyone here uses in their fish tanks for water changes. Personally the tap water here is unsuitable for use in my main tank although I do use it in some of the smaller tanks with hardier fish. It all depends on what goals I'm trying to achieve and which fish are in a particular tank.

My biggest question though would be the differences between RO/DI and distilled. I've used both and found little difference. Keep in mind that I am reconstituting such water to restore certain trace elements. With that in mind I fail to see much of a difference between the two other than the distilled water being more pure. I'm currently looking into some information on the distilled water I normally require to see what if any possible contaminants are still present and will keep you posted on the results of that. Just wondering what everyone's preference is and why.

Also I've noticed that most people consider RO (reverse osmosis) and DI (deionized) water interchangably. While I know the processes used to create the final water product are different I'm more interested in knowing what differences if any are present in the final product. While I have a whole lot of aquarium equipment and testing supplies I don't have anywhere near the capability to compare many of the trace elements remaining in the final product.
FDStation152 is offline  
Sponsored Links
post #2 of 4 Old 01-25-2007, 08:01 PM
Even though you dont have it up there. I use the drinking water that walmart sells to top off and do water changes.
usmc121581 is offline  
post #3 of 4 Old 01-25-2007, 08:02 PM Thread Starter
FDStation152's Avatar
well if you were to believe the label on the drinking water that walmart sells I believe it qualifies as reverse osmosis...I'd have to check next time I'm there buying distilled though.
FDStation152 is offline  
post #4 of 4 Old 01-25-2007, 08:06 PM
I save all all of the empty gallons for when I move. Your right it states PROCESSED BY REVERSE OSMOSIS AND OZONATION. Ive testes the water and it reads zero on everything so there was no reason to change it.
usmc121581 is offline  

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
water question deoinized water vs distilled water jaysix79 Saltwater Fish 13 02-08-2010 01:42 AM
Distilled Water ThalesthePearsei Coral and Reef Creatures 13 03-15-2009 12:19 AM
Walmart Distilled Water? sergiotami Water Chemistry 5 01-05-2009 10:38 PM
Using Distilled water Carnage Beginner Freshwater Aquarium 3 11-01-2008 10:24 AM
Using Distilled Water?? aunt kymmie Beginner Freshwater Aquarium 2 06-05-2008 11:03 AM

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 On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome