Just out of curiosity, how are you measuring ph? I use the API test kits, and I can’t discern teh results with that degree of specificity. What is more, my ph reagent usually suggests a lower ph than my high ph reagent. I do know if the colors […]
First thing I always do when the ph is unexpectedly high is rinse the tube with water from the tank, shake the test solution (again), and repeat the test, and it’s always alot closer to what I expect.
Water here is very alkaline, so if maybe some small amoun tis in the test tube from rinsing […]
Although it’s less than a year old, that does not mean that the kit didn’t sit on the stores shelves for a long time. You can check the manufacturing dates of the API reagents.
This article explains the coding. http://www.cichlid-forum.com/articles/test_kits_life.php
This thread talks about other issues involving the API test kits. http://thegab.org/forum/viewtopic.php?t=2328
I have and use the […]
> > But, before you go through all that, if you have reagents that are > relatively new, you may be getting an accurate reading from your test > kit. Plants will utilize nitrates in the water column to provide needed > nutrients to be able to photosynthesize, and you may have reached a […]
I used to pickup pH solutions for specific pH values at That Fish Place. I never did this for other measurements since I was using a pH probe at the time that needed to be calibrated fairly often. You can try the Hach or LaMotte sites to see if they offer nitrate solutions of given […]
> For those who have an interest, I found a couple of documents talking about > reagent expiration. Steve or Lenny. Is there a way to create a test solution to test the effectiveness of a test? I have two planted aquariums which have never shown any nitrate on a API test. I would to […]
Thanks Steve, I have my own water well witch seems to be very stable in its quality. I checked out both web sites on reagent stability and my normal use with 3 aquariums keeps my turn over well under there minimum expiration dates.
Jimmy McHaney Husser, LA
I don’t know if you are using a municipal water supply or your own water. If it is the former, get a copy of their water test results. These are public information, and can often be found on the town or city’s web site. If you can’t find it on the web, give them a […]
The first thing I’d look at is the expiration date on the reagents that are being used. Liquid reagents have a shorter shelf life than the dry reagents. Another thing to look at is how easy it is for you to differentiate a 2 ppm or so change in the nitrate level with that test […]
Well, it drops 4″ in a month… However, if you were asking about volume, since the upper pond is flowing into the lower pond, it’s level won’t change - only the lower pond will have a change in “levels”
What do I win?
On Fri, May 16, 2008 at 3:03 PM, Bill Dowden wrote: > […]