fishcraze_1
Guest
Does anyone use this instrument to check calcium
Any reviews,
Thanks
Any reviews,
Thanks
-
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Hanna calcium checker (1 Viewer)
- Thread starter fishcraze_1
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fishcraze_1
Guest
looks good
i hate doing the salifert tests
seems like these would be good
also the alkalinity checker
i hate doing the salifert tests
seems like these would be good
also the alkalinity checker
T
tang
Ostentum and Tektite has 'em
http://marshreef.com/modules.php?name=Forums&file=viewtopic&p=389732&highlight=hanna#389732
http://marshreef.com/modules.php?name=Forums&file=viewtopic&p=389732&highlight=hanna#389732
fishcraze_1
Guest
maybe we should ask about group rate to some sponsor on these
i think a lot of people on here would buy them
i think a lot of people on here would buy them
I need to give Don at Fragsandmore a call. He can get them. I need to get the new Ca one, I have the phos and alk and love them.
oldmantran
Guest
I ordered 2 of them. The vendor said that were in the QA phase a couple weeks ago. Haven't received word yet that they've shipped. Here's the mention and discounted pricing.
http://www.marshreef.com/modules.php?name=Forums&file=viewtopic&t=51839
http://www.marshreef.com/modules.php?name=Forums&file=viewtopic&t=51839
Yeah they are out now, if I dont get one from Don then I am going to order them directly from Hanna. I need some more solutions anyways.
fishcraze_1
Guest
let me know what you think dustin
will probably order calcium and alkalinity ones
when i get back on monday
will probably order calcium and alkalinity ones
when i get back on monday
Will do, but I won't get it til next week. TBaquatics sent me an e-mail saying they are on a company vacation this week and will resume shipping on saturday.
I like the alk one so far. The liquid reagent is great, a lot faster than my salifert test.
I like the alk one so far. The liquid reagent is great, a lot faster than my salifert test.
oldmantran
Guest
I got confirmation of shipment of mine today. Should have it by Friday. Since I've never done a Ca test, what are critiques based on?
Should I do a test with a different brand?
Should I do a test with a different brand?
Sorry I haven't updated , I got my test thursday and finally got a chance to try it out tonight.
The test itself was fairly simple, but I am a little concerned about it's results.
I've been using a salifert Ca test, which is widely accepted as being accurate. Here are my results:
Salifert Ca: 460ppm
Hanna Ca #1: 585ppm
Hanna Ca #2: 565ppm
Now I'm wondering which is accurate as this is a fairly large variance. I follow the Hanna test exactly with RODI and it's tips for accuracy as well. Anyone else got any results yet?
The test itself was fairly simple, but I am a little concerned about it's results.
I've been using a salifert Ca test, which is widely accepted as being accurate. Here are my results:
Salifert Ca: 460ppm
Hanna Ca #1: 585ppm
Hanna Ca #2: 565ppm
Now I'm wondering which is accurate as this is a fairly large variance. I follow the Hanna test exactly with RODI and it's tips for accuracy as well. Anyone else got any results yet?
oldmantran
Guest
I did a test with the Hanna yesterday. I got 457ppm. Unfortunately, I don't have any baseline. Does anyone have a Salifert test I can have for a comparison test?
I do, but am in league city. They test about the same. I got 471 on my Calcium which is close to what salifert tells me. Whats you alk and ph at. They all kinda run hand in hand. Do you also know your mag?
oldmantran
Guest
My brother used his Hanna checker for the first time tonight. It registers higher than the salifert just like dustinb did.
Hanna Ca...529
Salifert Ca...450
So there appears to be a trend here. Anyone find an official review yet?
Hanna Ca...529
Salifert Ca...450
So there appears to be a trend here. Anyone find an official review yet?
Jasonc
Guest
My CA came out different too
Elos: 470
Hanna: 499
Per Hanna, the purity of your RO/DI or DI water can make a huge difference in results. Hanna is now suggesting lab grade DI water (which they sell - or you can find at some pharmacies) for your sample even if your RO/DI water is reading 0 on the TDS meter. Evidently even if you're zero'd on TDS there can still be enough minerals to adversely effect the results. Also, if your SW sample is even a fraction over the .01 required your test will be skewed due to the dilution ratio (9:1). A lot of people have found using U-100 insulin syringes more effective at delivering the correct amount of SW for the sample.
Elos: 470
Hanna: 499
Per Hanna, the purity of your RO/DI or DI water can make a huge difference in results. Hanna is now suggesting lab grade DI water (which they sell - or you can find at some pharmacies) for your sample even if your RO/DI water is reading 0 on the TDS meter. Evidently even if you're zero'd on TDS there can still be enough minerals to adversely effect the results. Also, if your SW sample is even a fraction over the .01 required your test will be skewed due to the dilution ratio (9:1). A lot of people have found using U-100 insulin syringes more effective at delivering the correct amount of SW for the sample.
oldmantran
Guest
Wow, that's really sensitive. I don't think i like that.
