KH Testing
- Thread starter Bear22
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Hanna alkalinity colorimeter checker is really good
Here's the link to Randy's DIY titration:
www.reef2reef.com
Don't get me wrong, the HannaChecker is easy to use and gets the job done, but the reagent can expire quite fast once opened and will yield too low results if this happens.
As far as I know alkalinity is one of those parameters that are better determined with titration instead of colorimetry. You are already doing this when using a salifert test kit, but you can get more precision by using a pH probe instead of a pH indicator (the color change you observe when performing the test).
A DIY Alkalinity Test
A DIY Alkalinity Test Alkalinity is one of the most important measurements that a reef aquarist can make. It can become rapidly depleted in many aquaria, requiring frequent measurement in order to maintain stable levels. While hobby test kits for alkalinity can be simple to use, some...
www.reef2reef.com
Don't get me wrong, the HannaChecker is easy to use and gets the job done, but the reagent can expire quite fast once opened and will yield too low results if this happens.
As far as I know alkalinity is one of those parameters that are better determined with titration instead of colorimetry. You are already doing this when using a salifert test kit, but you can get more precision by using a pH probe instead of a pH indicator (the color change you observe when performing the test).
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Bear22
Active Member
I don't doubt that this is probably one of the more accurate testing protocols for kH. However, I feel like this might open up other cans of worms so to speak with the pH tester itself.Here's the link to Randy's DIY titration:
A DIY Alkalinity Test
A DIY Alkalinity Test Alkalinity is one of the most important measurements that a reef aquarist can make. It can become rapidly depleted in many aquaria, requiring frequent measurement in order to maintain stable levels. While hobby test kits for alkalinity can be simple to use, some...
Don't get me wrong, the HannaChecker is easy to use and gets the job done, but the reagent can expire quite fast once opened and will yield too low results if this happens.
As far as I know alkalinity is one of those parameters that are better determined with titration instead of colorimetry. You are already doing this when using a salifert test kit, but you can get more precision by using a pH probe instead of a pH indicator (the color change you observe when performing the test).
Meaning, calibrating a dual probe tester with two point solutions (example 7.0 & 10.). I don't really want to have to calibrate my device at 4.0 and 7.0 solutions just to get the most accurate result; just to turn around and have to re-calibrate at 7.0 and 10.0 for regular/routine pH testing.
Maybe, the Salifert test is good enough.
Yes, it is prone to error if the pH probe isn't calibrated properly, but it's quite precise if done right.I don't doubt that this is probably one of the more accurate testing protocols for kH. However, I feel like this might open up other cans of worms so to speak with the pH tester itself.Here's the link to Randy's DIY titration:
A DIY Alkalinity Test
A DIY Alkalinity Test Alkalinity is one of the most important measurements that a reef aquarist can make. It can become rapidly depleted in many aquaria, requiring frequent measurement in order to maintain stable levels. While hobby test kits for alkalinity can be simple to use, some...
Don't get me wrong, the HannaChecker is easy to use and gets the job done, but the reagent can expire quite fast once opened and will yield too low results if this happens.
As far as I know alkalinity is one of those parameters that are better determined with titration instead of colorimetry. You are already doing this when using a salifert test kit, but you can get more precision by using a pH probe instead of a pH indicator (the color change you observe when performing the test).
Meaning, calibrating a dual probe tester with two point solutions (example 7.0 & 10.). I don't really want to have to calibrate my device at 4.0 and 7.0 solutions just to get the most accurate result; just to turn around and have to re-calibrate at 7.0 and 10.0 for regular/routine pH testing.
Maybe, the Salifert test is good enough.
I don't think you really need precision beyond salifert for reef tank purposes to be honest.
