Re: NANFA-L-- Kinda OT- Salt


Subject: Re: NANFA-L-- Kinda OT- Salt
From: Todd D. Crail (tcrail at UTNet.UToledo.Edu)
Date: Mon Oct 25 2004 - 17:33:27 CDT


I've had 4 brand new plastic hydrometers, fresh off the shelf, just unwrapped, in the same tank without a single one reading the same thing! Variance was by 0.004.

Without a refractometer or a glass hydrometer to continually calibrate them against... They're really not all that reliable.

And even then... They still get air bubbles trapped.

Todd

----- Original Message -----
  From: Snailcollector at cs.com
  To: nanfa-l at nanfa.org
  Sent: Monday, October 25, 2004 5:15 PM
  Subject: NANFA-L-- Kinda OT- Salt

  I have the crystal sea hydrometer and decided to test it for accuracy. I made a calibration solution as said on reefkeeping.com and found it to be 99% accurate. But when I added the correct dosage of Instan Ocean to my water change bucket I found the SG to be 1.010. Whats up with this? The person who wrote the article about calibration solutions has a Ph.D in chemistry, so I am not so quick to doubt him.

  Thanks,
  Andrew

/-----------------------------------------------------------------------
/ This is the discussion list of the North American Native Fishes
/ Association (NANFA). Comments made on this list do not necessarily
/ reflect the beliefs or goals of NANFA. For more information about NANFA,
/ visit http://www.nanfa.org . Please make sure all posts to nanfa-l are
/ consistent with the guidelines as per
/ http://www.nanfa.org/archive/nanfa/guidelines.html. To subscribe,
/ unsubscribe, or get help, visit the NANFA email list home page and
/ archive at http://www.nanfa.org/archive/nanfa/.



: Fri Dec 31 2004 - 11:27:52 CST