[Timezone Detection]
Create Account - Join in Seconds!

User Name: Email Address:
Human Verification

What is one of the colors on a clownfish? (hint there is a clownfish on the CR logo in the top left corner of the page.)

zooplankton/phytoplankton?


Bookmark and Share
Page 1 of 2 1 2 Last
Results 1 to 10 of 11
  1. #1
    MizTanks - Reefkeeper
    Join Date
    Oct 2009
    Location
    U.P. of Michigan.
    Posts
    7,683
    First Name
    Jamie
    Awards Photo of the Month - October 2012 Photo of the Month Post and Reply Award - Winner of the first PAR Contest. Monthly Giveaway Winner

    Default zooplankton/phytoplankton?

    First question is about zooplankton/phytoplankton for filter feeders and maybe even some corals. Do you have any recommendations?

    Second is can I make my own calibration fluid for my refactor meter?

    Thanks in advance
    There's nothing like being a Reefer! www.upmmas.com

  2. #2
    BeakerBob - Reefkeeper
    RIP

    Join Date
    Sep 2009
    Location
    Lansing, Michigan
    Posts
    461
    Awards Photo of the Month Photo of the Month

    Default

    I have not ventured into the zooplankton/phytoplankton production, but there are a number of folks that have....maybe we can get them to post.

    Making refractometer calibration fluid is easy - if you have the right tools. An analytical grade balance to precisely weigh out the NaCl and a volumetric flask is needed.

    However, if you want to give it a try, you can get pretty close by dissolving 3.65 grams of NaCl into 96.35 mL of RODI. If you don't have the tools for this type of measurement, you can do the following*:

    1. Measure 1/4 cup of Morton's Iodized Salt (about 73.1 g)

    2. Add 1 teaspoon of salt (making about 79.3 g total salt)

    3. Measure the full volume of a plastic 2-L Coke or Diet Coke bottle filled with purified freshwater (about 2104.4 g)

    4. Dissolve the total salt (79.3 g) in the total water volume (2104 g) to make an approximately 3.65 weight percent solution of NaCl. The volume of this solution will be slightly larger than the Coke bottle, so dissolve it in another container.

    *from Reef Aquarium Salinity: Homemade Calibration Standards


    Since most people don't have the necessary instruments and tools to precisely weigh chemicals to make calibration solutions, they buy them to ensure quality and precision. I will have some available at the Ann Arbor swap if you would like to get it there.
    Last edited by BeakerBob; 09-02-2011 at 09:32 PM.
    BeakerBob - Past MMMC Club President, current Board Member
    imagephp?u1&amptypesigpic&ampdateline1261894023 - zooplankton/phytoplankton?

  3. #3
    MizTanks - Reefkeeper
    Join Date
    Oct 2009
    Location
    U.P. of Michigan.
    Posts
    7,683
    First Name
    Jamie
    Awards Photo of the Month - October 2012 Photo of the Month Post and Reply Award - Winner of the first PAR Contest. Monthly Giveaway Winner

    Default

    Quote Originally Posted by BeakerBob View Post
    I have not ventured into the zooplankton/phytoplankton production, but there are a number of folks that have....maybe we can get them to post.

    Making refractometer calibration fluid is easy - if you have the right tools. An analytical grade balance to precisely weigh out the NaCl and a volumetric flask is needed.

    However, if you want to give it a try, you can get pretty close by dissolving 3.65 grams of NaCl into 96.35 mL of RODI. If you don't have the tools for this type of measurement, you can do the following*:

    1. Measure
    Hey you didn't finish!!!
    There's nothing like being a Reefer! www.upmmas.com

  4. #4
    MyNemesis - Reefkeeper
    Join Date
    Sep 2009
    Location
    Lansing, Michigan
    Posts
    381
    First Name
    John
    Awards Fishbowl Drawing Winner - Fishbowl Drawing #3 MCES 2012 ($25 Reef Paradise Gift Certificate)

    Default

    You can buy calibration fluid. Debbie Berlin used to sell it. Why don't you use distilled water and calibrate it at zero. That should work just fine.

  5. #5
    MizTanks - Reefkeeper
    Join Date
    Oct 2009
    Location
    U.P. of Michigan.
    Posts
    7,683
    First Name
    Jamie
    Awards Photo of the Month - October 2012 Photo of the Month Post and Reply Award - Winner of the first PAR Contest. Monthly Giveaway Winner

    Default

    Quote Originally Posted by MyNemesis View Post
    You can buy calibration fluid. Debbie Berlin used to sell it. Why don't you use distilled water and calibrate it at zero. That should work just fine.
    I was wondering about that. Just wasn't sure I could use it or not. Thanks MyNemesis
    There's nothing like being a Reefer! www.upmmas.com

  6. #6
    BeakerBob - Reefkeeper
    RIP

    Join Date
    Sep 2009
    Location
    Lansing, Michigan
    Posts
    461
    Awards Photo of the Month Photo of the Month

    Default

    I edited my reply to complete the remaining content. As a chemist, I have the available instrumentation and tools to accurately make this calibration fluid and was the source for Debbie's supply.

    Do not calibrate with RO/DI water to zero unless you have a very good laboratory grade refractometer (very expensive!). The refractomteres currently sold for the aquarium trade are not linear from zero to 1.030. You MUST calibrate within the seawater measurement range to get the best precision and accuracy. This means calibrating at 35ppt or 1.026.
    BeakerBob - Past MMMC Club President, current Board Member
    imagephp?u1&amptypesigpic&ampdateline1261894023 - zooplankton/phytoplankton?

  7. #7
    MizTanks - Reefkeeper
    Join Date
    Oct 2009
    Location
    U.P. of Michigan.
    Posts
    7,683
    First Name
    Jamie
    Awards Photo of the Month - October 2012 Photo of the Month Post and Reply Award - Winner of the first PAR Contest. Monthly Giveaway Winner

    Default

    No way I can make the swap-but if your willing to ship I'll def buy some from you
    There's nothing like being a Reefer! www.upmmas.com

  8. #8
    MyNemesis - Reefkeeper
    Join Date
    Sep 2009
    Location
    Lansing, Michigan
    Posts
    381
    First Name
    John
    Awards Fishbowl Drawing Winner - Fishbowl Drawing #3 MCES 2012 ($25 Reef Paradise Gift Certificate)

    Default Ask the Chemist

    Sorry, I didn't mean to give you a bum steer. I use the calibration fluid, but thought you could use the distilled water as well. I guess that is why we have experts! Learn something new every day in this hobby.
    Likes MizTanks liked this post

  9. #9
    BeakerBob - Reefkeeper
    RIP

    Join Date
    Sep 2009
    Location
    Lansing, Michigan
    Posts
    461
    Awards Photo of the Month Photo of the Month

    Default

    John, you did not steer anyone in the wrong direction.

    Calibrating with distilled water to zero was, and is, still a common practice in calibrating instrument grade analytical refractometers. This type of calibration instruction is often included with the inexpensive reef refractometers that are being sold today. Unfortunately, these reefing refractometers are not linear from zero to 1.030, so you must calibrate at/near the point of measurement use. The 35 ppt/1.026 SG calibrating fluid is the best to use for the reefing application using the inexpensive reefing refractometers. They should be accurate for our use once it is properly calibrated and maintained.
    BeakerBob - Past MMMC Club President, current Board Member
    imagephp?u1&amptypesigpic&ampdateline1261894023 - zooplankton/phytoplankton?

  10. #10
    MizTanks - Reefkeeper
    Join Date
    Oct 2009
    Location
    U.P. of Michigan.
    Posts
    7,683
    First Name
    Jamie
    Awards Photo of the Month - October 2012 Photo of the Month Post and Reply Award - Winner of the first PAR Contest. Monthly Giveaway Winner

    Default

    Where can I get this fluid Bob?
    There's nothing like being a Reefer! www.upmmas.com

Page 1 of 2 1 2 Last

Similar Topics

  1. Orphek PHYTOPLANKTON ZOOPLANKTON CORALS
    By OrphekUSA in forum Orphek
    Replies: 0
    Last Post: 04-20-2013, 09:00 AM
  2. Proof positive SPS corals consume zooplankton
    By MizTanks in forum Small Polyp Stoney (SPS) Coral
    Replies: 7
    Last Post: 09-04-2011, 09:26 PM
  3. SPS Corals Proof positive SPS corals consume zooplankton
    By MizTanks in forum Coral Discussion
    Replies: 7
    Last Post: 09-04-2011, 09:26 PM
  4. Reef Livestock Rotifers/Phyto and Zooplankton
    By MizTanks in forum Want to Buy
    Replies: 0
    Last Post: 09-01-2011, 10:16 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

About CaptiveReefs

    If you are interested in learning about reefkeeping or have a problem with your reef, our reefkeeping community is here to help. Feel free to ask a question or search our site. We have lots of experienced reefkeepers that are willing to provide free reefkeeping advice!

    Besides being a great resource for all levels of reef aquarium hobbyists, CaptiveReefs is a social experience that will enhance your enjoyment of reefkeeping. CaptiveReefs is committed to connecting reefkeepers with the support and information they need to grow beautiful coral reef aquariums.

Information

Connect with Us