Reef Central Online Community
Live Aquaria

Home Forum Here you can view your subscribed threads, work with private messages and edit your profile and preferences View New Posts View Today's Posts

Find other members Frequently Asked Questions Search Reefkeeping ...an online magazine for marine aquarists Support our sponsors and mention Reef Central

Go Back   Reef Central Online Community > General Interest Forums > The Reef Chemistry Forum
Register Blogs FAQ Calendar Mark Forums Read

Notices

User Tag List

Reply
Thread Tools
Old 09/06/2020, 07:22 AM   #1
aikenreefkeeper
Registered Member
 
Join Date: Aug 2011
Location: Tucson AZ
Posts: 95
Red Sea Pro Alkalinity Test Kit

I recently purchased a Red Sea Alkalinity Test Kit. I never got the blue start point since I purchased the kit. I got on YouTube and watched a video and they got the blue/green start and end point. It is a pretty simple test. I tried it on both of my tanks and got the same results. It ends up with the yellowish end point. I though maybe my Alk was too low so I cut the amount of water in half as a trial and got the same results.

Could I have gotten a bad reagent?

Thanks,


aikenreefkeeper is online now   Reply With Quote
Old 09/06/2020, 06:31 PM   #2
bertoni
RC Mod
 
Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,616
I assume that this is the Red Sea Pro version that is supposed to give a pink end point? Has the tank gotten a lot of pH buffer or a pH adjuster dosed into it? If not, I agree that the reagent might have failed.


__________________
Jonathan Bertoni
bertoni is offline   Reply With Quote
Old 09/06/2020, 11:18 PM   #3
bertoni
RC Mod
 
Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,616
I think testing some freshly-mixed saltwater might be a good sanity test, come to think of it.


__________________
Jonathan Bertoni
bertoni is offline   Reply With Quote
Old 09/07/2020, 12:18 PM   #4
aikenreefkeeper
Registered Member
 
Join Date: Aug 2011
Location: Tucson AZ
Posts: 95
Jonathan,

No, I have not added any Ph booster. I have been added a few drops of Red Sea Kh additive......maybe 6 - 10 drops a day. this is in a 20 gallon tank. I did another test, I added a drop of the Kh Addative to the vile before I ran the test again. I finally did get a bluish color at the very end. I sent an email to Red Sea and Bulk Reef.

Thanks,

Dean


aikenreefkeeper is online now   Reply With Quote
Old 09/08/2020, 05:19 AM   #5
Alex114
Registered Member
 
Join Date: May 2019
Location: Northeast Ohio
Posts: 99
So I’ve used this test kit for awhile. One of the refill kits I bought wouldn’t show up blue at all. But it would show up green consistently at the level I was expecting. Like bertoni said I would look up the level of alkalinity your salt mixes at and test that to see if you get any green at that level. Holding up a paper towel or white piece of paper sometimes helps to make it show up too


Alex114 is offline   Reply With Quote
Old 09/15/2020, 05:31 AM   #6
aikenreefkeeper
Registered Member
 
Join Date: Aug 2011
Location: Tucson AZ
Posts: 95
This weekend was time for another water change. After I had my water mixed, I ran a test on my tank water and the newly mixed water. I got about the same results. I put together a summary and sent to Red Sea.

Thanks,

Dean


aikenreefkeeper is online now   Reply With Quote
Old 09/15/2020, 05:48 AM   #7
aikenreefkeeper
Registered Member
 
Join Date: Aug 2011
Location: Tucson AZ
Posts: 95
Here are photos of the results I got.....

This is at .2 Ml of Reagent added to my tank water.



This is at .4 Ml of Reagent added to my tank water.


This is at .6 Ml of Reagent added to my tank water.
http://www.reefcentral.com/forums/pi...ictureid=81327

This is at .8 Ml of Reagent added to my tank water.
http://www.reefcentral.com/forums/pi...ictureid=81328

This is at 1.0 Ml of Reagent added to my tank water.
http://www.reefcentral.com/forums/pi...ictureid=81329

Any assistance would be appreciated.

Thanks,

Dean


aikenreefkeeper is online now   Reply With Quote
Old 09/15/2020, 09:51 AM   #8
Vinny Kreyling
Registered Member
 
Vinny Kreyling's Avatar
 
Join Date: Nov 2002
Location: Miller Place, NY
Posts: 6,797
IF & I say IF you are used to a Salifert Kit they read opposite.


__________________
250 gallon mixed reef, 2 Reefbreeder's Photon V 2, RD 3 Speedy 80 Watt, DAS EX-3 Skimmer, MTC mini cal, 2-3/4" Sea Swirls, Aquacontroller & 6 Tunze pumps.
Vinny Kreyling is offline   Reply With Quote
Old 09/15/2020, 12:00 PM   #9
clevername
Registered Member
 
Join Date: Feb 2007
Location: Manchester, MO
Posts: 1,087
Like others have said, test your freshly mixed water. Then i would just buy a refill kit (call red sea).

Unless your missing some obvious steps then, these results are not right.


__________________
In process: 210gal, VARIOS-8 return, Kessil Lights, 80 gal sump, mp60's, and REGAL 200EXT 8" RECIRCULATING skimmer
clevername is offline   Reply With Quote
Old 09/18/2020, 05:24 AM   #10
aikenreefkeeper
Registered Member
 
Join Date: Aug 2011
Location: Tucson AZ
Posts: 95
All,

So I emailed Red Sea and sent them the pictures I had taken. They sent me a new bottle of reagent. It was from Lot 330. This is the results I got with this lot.

This picture is with .4 Ml of the new reagent.



This picture is with .5 Ml of the new reagent.



This picture is with .55 Ml of the new reagent.



This picture is with 1.0 Ml of the new reagent.



Red Sea sent me the new reagent two days after I sent them the photos.

Thank you Red Sea.

Dean


aikenreefkeeper is online now   Reply With Quote
Old 09/30/2020, 06:41 PM   #11
ausndani
Registered Member
 
Join Date: Jul 2013
Posts: 13
Thats very kind of red sea


ausndani is offline   Reply With Quote
Reply

Thread Tools

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 On

Forum Jump


All times are GMT -6. The time now is 05:17 AM.


TapaTalk Enabled

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2020 Axivo Inc.
Use of this web site is subject to the terms and conditions described in the user agreement.
Reef CentralTM Reef Central, LLC. Copyright ©1999-2014
User Alert System provided by Advanced User Tagging v3.3.0 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.