Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater & Reef - Getting Started
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 08-25-2008, 09:50 PM   #1
AA Team Emeritus
 
Tank2379's Avatar
 
Join Date: Jul 2008
Location: Chicago,IL
Posts: 2,890
Send a message via MSN to Tank2379 Send a message via Yahoo to Tank2379
Question Confusing??? HYDRMR and REFRMR

Alright I'm a little confused about Hydrometer and Refractometer I know one is more accurate than the other if it's more accurate they why spend money on the other???? I have a Hydrometer and now I am wondering if my Salinity is Accurate.... Could someone tell me that it's ok to use a Hydrometer.......
__________________

__________________
Tank2379 is offline   Reply With Quote
Old 08-25-2008, 10:09 PM   #2
Thanx but no.....


 
Join Date: Jun 2008
Posts: 2,333
Wish I could but I can't. It'll get ya by but a class act like you.. well please... you need the best and most accurate..
__________________

__________________
CaptainAhab is offline   Reply With Quote
Old 08-25-2008, 10:15 PM   #3
SW REEF 18+ YEARS
Community Admin
 
melosu58's Avatar



Tank of the Month Award
 
Join Date: Oct 2004
Location: Virginia
Posts: 38,249
http://www.drsfostersmith.com/pic/article.cfm?aid=557

As you see in the article the refractometer can test taking into account the temp of the water. The hydrometer can not.
__________________

SITE ADMINISTRATOR

You can view many of my fish and corals in my photo albums in my profile.

View my tank


AA Community Rules|AA TOS

Forums 101 - posting, accounts, basics
melosu58 is offline   Reply With Quote
Old 08-25-2008, 10:25 PM   #4
AA Team Emeritus
 
roka64's Avatar
 
Join Date: Mar 2006
Posts: 13,860
Send a message via AIM to roka64 Send a message via Yahoo to roka64
I agree 100%, I was really surprised at the difference between my hydrometer and the refractometer. The refracto should run about $40ish. I do like the fact that the refracto takes into account water temp.
__________________
Age is relative, you are only as old as you act....of course, this works in reverse....

Questions loved, heeded advice greatly appreciated!

Vote for AA
Good reading about:
Nitrogen Cycle
Fishless Cycling
Need more help?
Articles
Acronym List

--Scott
roka64 is offline   Reply With Quote
Old 08-25-2008, 10:59 PM   #5
AA Team Emeritus
 
Tank2379's Avatar
 
Join Date: Jul 2008
Location: Chicago,IL
Posts: 2,890
Send a message via MSN to Tank2379 Send a message via Yahoo to Tank2379
Thanks Fellas I'll pick one up this weekend....
__________________
Tank2379 is offline   Reply With Quote
Old 08-25-2008, 11:25 PM   #6
AA Team Emeritus
 
Join Date: Nov 2006
Posts: 3,462
Conductivity > Refractometer > Hydrometer in that order
__________________
Innovator is offline   Reply With Quote
Old 08-25-2008, 11:28 PM   #7
AA Team Emeritus
 
roka64's Avatar
 
Join Date: Mar 2006
Posts: 13,860
Send a message via AIM to roka64 Send a message via Yahoo to roka64
"Conductivity" hmm, pretty interesting. So an electrical current measurement is more accurate than light? What about temp?
__________________
Age is relative, you are only as old as you act....of course, this works in reverse....

Questions loved, heeded advice greatly appreciated!

Vote for AA
Good reading about:
Nitrogen Cycle
Fishless Cycling
Need more help?
Articles
Acronym List

--Scott
roka64 is offline   Reply With Quote
Old 08-25-2008, 11:30 PM   #8
AA Team Emeritus
 
Tank2379's Avatar
 
Join Date: Jul 2008
Location: Chicago,IL
Posts: 2,890
Send a message via MSN to Tank2379 Send a message via Yahoo to Tank2379
Interesting!!!!!
__________________
Tank2379 is offline   Reply With Quote
Old 08-26-2008, 12:33 AM   #9
Aquarium Advice Addict
 
Join Date: Aug 2006
Location: not here anymore
Posts: 5,338
Quote:
Originally Posted by roka64 View Post
"Conductivity" hmm, pretty interesting. So an electrical current measurement is more accurate than light? What about temp?
That's all the digital salinity meters are measuring... conductivity. I think where the accuracy comes into play is the consistency of interpreting the reading. Measuring conductivity digitally doesn't really leave any interpretation into it. But trying to figure out where exactly that line is on the refractometer... that's open to that darn human factor!
__________________
Kurt_Nelson is offline   Reply With Quote
Old 08-26-2008, 12:55 AM   #10
AA Team Emeritus
 
Join Date: Nov 2006
Posts: 3,462
Correct Kurt. Conductivity meters are only as accurate as the quality of calibration standards, which provides much better results and the users confidence in accepting of the data provided from that unit. Refractometers are nice because of portability vs. reasonable data as long as you receive a quality product
__________________

__________________
Innovator is offline   Reply With Quote
Reply

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
confusing coral mykpoz Saltwater & Reef - Identification 6 09-21-2005 05:41 PM
confusing readings... Oceanicsublimat Saltwater & Reef - Getting Started 3 05-01-2005 02:29 PM
Confusing Ammonia ambulocetus Saltwater & Reef - Getting Started 1 11-28-2004 01:40 PM
confusing heater fish_newbie General Hardware/Equipment Discussion 5 07-30-2004 06:05 PM
You're all confusing me about QT's! gear-head Saltwater Reef Aquaria 2 06-01-2004 12:18 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 12:21 PM.


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