Reading Hanna alk meter help.

[BigFeesh]

How do you convert the number given to you to alk my meter says 91. I just don't know how to get it to dkh

 

[gar732]

I'm sure that there is some mathematical equation or a chart somewhere but I just use this SaltyZoo's Alkalinity Reading Conversion (meq/l / dKH / ppm CaCO3) Utility

 

[Aquaph8]

Multiply by .056 for DKH. I think thats right, Ill double check for you.

 

[Aquaph8]

Yes multiply
.056 for DKH
.02 for meq

 

[Ostentum]

5.09 is pretty low. But yes the above are correct. You have to read the small writing at the very bottom of the card. It is written there. I missed it the first time also.

 

[BigFeesh]

Yes but my API reads about 8.5 and my tank doesn't look like it's that low. I'm pretty sure I would see changes with corals.

 

[nixer]

when i got mine it was that low. id try the test again just to be sure. if it reads that again i would slowly bring it up.

 

[BigFeesh]

I tested 3 times in a row. Ive read on rc about alot of people having the same problem

 

[nixer]

api tests are hardly reliable nor accurate.
try a different test.
as i tossed a salfret for the hanna and even that was better than the api

 

[BigFeesh]

I would not agree with that statement. If you mess up the slightest they are way off. But I know people that use API for alk and their tanks are perfect! Sps look the best and have crazy growth.

 

[nixer]

whats your other parameters?

 

[BigFeesh]

Mag 1300-1350 calcium 390- 400 ph 8.1-8.3

 

[Aquaph8]

Something is wrong with your meter. Mine is pretty close to my api kit. Not exact but pretty close.

 

[BigFeesh]

Well darn.

 

[HighlandReef]

I know people have had some issues with the Hannah testers so take the reading with a grane of salt
I use API all the time for more of a daily tester and use my lamotte test kits to verify my API test kits are still reading correctly. So I have found the API kits are pretty close as long as they are not old, I replace my API kits yearly. I have had more problems with salifert test kits than API, so far 2 bad salifert alk kits so salifert no more, maybe just a run of bad luck but I can't risk some of my corals on a bad run.
Others have had good luck with salifert and swear by them but I just don't trust it anymore.