help-- high alkalinity

[CancerverO]

I just tested my water in my 24g nanocube

Alkalinity: 16.0
Calcium: 460
Ph:8.0

how do I reduce the alkalinity?

im planing to do a water change....

im using salifert test

Thanks guys...

 

[KathyC]

Run a second test and double check.
What had your prior alk reading been?
Have you been dosing your tank? If so, with what & how much?

 

[NYreefNoob]

and are you doing ? there was some bad batch's of sulifet that went around also. check a thread on rc for batch number's. and as stated check with a different test kit

 

[CancerverO]

last time i checked was sunday.. alkalinity was 0.15, but my ph was low 7.2

sp i dosed my tank with marine buffer,. i think this is the reason why my alk is high..

i dose half of a tbs...

should I change the water? my torch is not looking so good.. from dark green is now really light green..

 

[CancerverO]

I can get another test kit tomorrow.. but im worry about my torch.. im about to change the water.. should I? or this will make it worst...

 

[KathyC]

Unless there is something suddenly wrong with your water (which is doubtful) ..yes, do a water change & retest.
I didn't say you needed to buy a new test kit, it's always good to first recheck the test you did run, and to be sure that you are doing the test correctly and reading the results properly.
Had you rechecked your results before you added that buffer?

Alk 0.15??..Is that a typo?

 

[CancerverO]

http://www.manhattanreefs.com/forum/general-discussion/30920-safe-use-salifert-test-kits.html

yes it was a typo...
sunday was 15
today 16+ ...

i just run it again and it is 16..

now Alk 16 is too hight... right??
well the buffer raised the ph from 7.2 to 8.0..and alk from 13 to 16...

 

[KathyC]

The 16 you keep mentioning..is that the KH that you are reading off the chart?
Is this a Salifert test kit?
Does your test kit come from the batch numbers that are shown in the link you just posted? (look in that thread where I posted..I put the problem batch numbers in there). That said, even the kits that were having problems weren't reading more than 1 to 1 1/2 points off.

 

[CancerverO]

im using salifer test kit..
syringe reading = around ~0.04, KH: 15.4, Alk: 5.49
lucky it is not in the batch numbers...

 

[gnatp2]

Strange that your pH is that low given your alk.
The highest I've heard of the salifert tests being off is by 5 dKH.
Get the lamotte and check again.

 

[ming]

Mix up some new saltwater to the proper salinity and test the alk of it.
It should be anywhere from 8-10 depending on brand