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 12-15-2008, 10:09 PM   #1
Aquarium Advice Activist
 
joeyfromlawrenceville's Avatar
 
Join Date: Sep 2008
Location: lawrenceville,georgia
Posts: 195
Q: about how to read /use refractometer

Hi again,

I have the $41 dollar model from Dr. F/S , should be the same as any though. When I look through the eye piece I will sometimes see a very thin white line just a hair above the bottom of the blue area. I believe it is more noticeable when there is more water on the plate. Usually when I see it the blue doesn't have a crisp bottom edge. I am putting 3 or 4 drops on the plate to cover the entire plate , and sometimes gently press down on the clear plastic cover to disperse it evenly on the whole glass plate. The white line would make it read about .001-.002 higher than the bottom edge of the blue. Again the white line isn't always there, and my progressive bi-focals make it that much harder to read.
Any help on how to use this instrument will be useful, ie. Light source, amount of liquid, cleaning instructions, and common mistakes.
Thanks,
__________________

__________________
Joey
37 gal FOLR for my daughter ( she is 6 yr old)
3 gal Pico mini reef.( for me)
24 gal Aquapod (wife's) reef, now cycled and currently emptying my wallet.
joeyfromlawrenceville is offline   Reply With Quote
Old 12-15-2008, 10:29 PM   #2
Aquarium Advice Freak
 
sooju's Avatar
 
Join Date: Aug 2008
Location: Pleasantville, NY
Posts: 257
This is how I use mine - put 4-5 drops of RO on the plate, lower the plastic top and let the excess drip off (make sure there are no air bubbles), wait 30 seconds for the temperature to come to room temp, look through the refrac against a brightly lit window or lamp and use a tiny screwdriver to move the blue/white line to exactly 0 ppm, dry off the plate and add 4-5 drops of tank water, lower the cover, let excess drip off, wait 30 sec, and look against bright light. Does that make sense? I do find that I have to calibrate it every time I use it because it seems to change on its own sometimes...
__________________

__________________
sooju is offline   Reply With Quote
Old 12-15-2008, 10:45 PM   #3
Aquarium Advice Activist
 
joeyfromlawrenceville's Avatar
 
Join Date: Sep 2008
Location: lawrenceville,georgia
Posts: 195
Thanks, yours might not have the thin white line that I see, but I'm glad to know you have a fair amount of water on it too. About calibrating every time, is that normal? anyone else want to tell me their experience with that. Is that something that varies from model to model?
Thanks,
__________________
Joey
37 gal FOLR for my daughter ( she is 6 yr old)
3 gal Pico mini reef.( for me)
24 gal Aquapod (wife's) reef, now cycled and currently emptying my wallet.
joeyfromlawrenceville is offline   Reply With Quote
Old 12-16-2008, 12:45 AM   #4
Aquarium Advice Addict
 
Join Date: Aug 2006
Location: not here anymore
Posts: 5,338
You shouldn't have to calibrate a refractometer every time. I've only had to change the calibration on mine once over two years - and I check it every 3 months or so.

I pretty much do what sooju mentioned, except that I kind of press down firmly on the plastic top to "smoosh" the water out, making sure there aren't any air bubbles. Seems like when I don't "smoosh", I get a fuzzy line - kind of like you mentioned Joey.
__________________
Kurt_Nelson is offline   Reply With Quote
Old 12-16-2008, 08:14 AM   #5
Aquarium Advice Activist
 
joeyfromlawrenceville's Avatar
 
Join Date: Sep 2008
Location: lawrenceville,georgia
Posts: 195
Ok thanks,

Seems pretty straight forward, I just don't want to make any mistakes with the low gravity it requires to rid Ich. 1.009 dead Ich, 1.007 dead fish, big difference .
__________________
Joey
37 gal FOLR for my daughter ( she is 6 yr old)
3 gal Pico mini reef.( for me)
24 gal Aquapod (wife's) reef, now cycled and currently emptying my wallet.
joeyfromlawrenceville is offline   Reply With Quote
Old 12-16-2008, 09:58 PM   #6
Aquarium Advice Freak
 
sooju's Avatar
 
Join Date: Aug 2008
Location: Pleasantville, NY
Posts: 257
I know it sounds crazy, but I do calibrate my refrac every time because it moves around slightly, and I need exactly 1.009 for my hospital tank. Sometimes it stays correct, and sometimes it is slightly off, but either way I no longer trust that it will be accurate unless I calibrate it.
__________________
sooju is offline   Reply With Quote
Old 12-17-2008, 01:12 AM   #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
I agree, I mash the top down to get any bubbles out.
__________________

__________________
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
Reply

Tags
refractometer

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
Refractometer woody General Hardware/Equipment Discussion 5 07-13-2006 12:37 PM
Refractometer SW-FLguy Saltwater & Reef - Getting Started 6 05-03-2006 03:22 PM
Refractometer spence0416 General Hardware/Equipment Discussion 7 07-27-2005 02:25 PM
Refractometer MarkW19 Saltwater Reef Aquaria 5 10-18-2004 10:24 AM
Thank you Refractometer!!!! luntiz Saltwater Reef Aquaria 3 06-11-2004 11:34 AM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 07:33 AM.


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