DKH question

[Michael v]

I don’t have any corals yet. Only clean up crew. My aquarium is 65 gallon with a 20 gallon sump. I tested my water with Red Sea test kit my ph is 8.2 my DKH is 3.5. Do I need to raise the DKH?

 

[saltyfilmfolks]

I’m going with test error unless you Haven’t done a water change in a very very long time.

 

[lapin]

Are you sure its 3.5 dkh or meq/l?

im slow on typing i guess

 

[Michael v]

Are you sure its 3.5?

im slow on typing i guess

In .5 mil test I counted seven drops the card said 3.5 I did a 15 gallon water change yesterday. My salinity is at 1.025

 

[SomethingfishyPKNY]

In .5 mil test I counted seven drops the card said 3.5 I did a 15 gallon water change yesterday. My salinity is at 1.025

Yeah I agree that doesn't seem correct did the reagant expire?

 

[Michael v]

Yeah I agree that doesn't seem correct did the reagant expire?

Not sure think I’ll take a water sample to my LFS see what he thinks. My ph is right on.

 

[SomethingfishyPKNY]

Not sure think I’ll take a water sample to my LFS see what he thinks. My ph is right on.

That's a good start they should be in balance

 

[SomethingfishyPKNY]

Not sure think I’ll take a water sample to my LFS see what he thinks. My ph is right on.

I'm gonna follow this thread. Make sure you post what you get at the lfs I'm curious

 

[Michael v]

I'm gonna follow this thread. Make sure you post what you get at the lfs I'm curious

Will do thanks

 

[lapin]

I dont have the test Red Sea Alk test kit
Here are the instruction i found on the red sea site for their multi test kit
I think the result is in meq/l but I could be wrong

Directions for KH Alkalinity Pro Test Kit
1. Using the large syringe provided, place exactly 10 ml of the water to be tested into the
glass vial.
2. Screw the glass vial onto the bottom of the Titrator.
3. Ensure that the dispensing tip is on the 1 ml titration syringe and fill with 1ml of Alkalinity
Pro Titrant. [see note for filling titration syringe.]
4. Insert the syringe into the center of the Titrator so that the volumetric scale on the side of
the syringe is visible. The graduations of the volumetric scale are 0.01 ml, equivalent to an
alkalinity of 0 .05 meq/L (0.14 dKH).
5. Add the first 0.4 ml of titrant (equivalent to an alkalinity of 2.0 meq/L – 5.6 dKH) by
pressing the plunger of the syringe while gently swirling the Titrator. The test sample will
obtain the titration start color as shown on the instruction card after the first few drops
of titrant are added. Continue adding the titrant gradually, swirling the Titrator after each
addition and paying attention to the color in the vial. As the color in the vial approaches the
end color as shown on the instruction card, add one drop at a time, swirling after each drop,
until the end color is achieved.
Note: If you have added 1 ml of alkalinity titrant, without reaching the end color, the
alkalinity of your water sample is more than 5 meq/L (14 dKH). Refill the syringe and
continue to add titrant until you reach the end color.
6. Note the amount of titrant used (according to the initial and final position of the plunger
not the liquid surface) and use the table on the instruction card to calculate the level of
alkalinity in the water sample.

 

[SomethingfishyPKNY]

I had that kit before I got the hannah. Those are correct instructions I used to look at the vial up at the light to see the color.

 

[Michael v]

I dont have the test Red Sea Alk test kit
Here are the instruction i found on the red sea site for their multi test kit
I think the result is in meq/l but I could be wrong

Directions for KH Alkalinity Pro Test Kit
1. Using the large syringe provided, place exactly 10 ml of the water to be tested into the
glass vial.
2. Screw the glass vial onto the bottom of the Titrator.
3. Ensure that the dispensing tip is on the 1 ml titration syringe and fill with 1ml of Alkalinity
Pro Titrant. [see note for filling titration syringe.]
4. Insert the syringe into the center of the Titrator so that the volumetric scale on the side of
the syringe is visible. The graduations of the volumetric scale are 0.01 ml, equivalent to an
alkalinity of 0 .05 meq/L (0.14 dKH).
5. Add the first 0.4 ml of titrant (equivalent to an alkalinity of 2.0 meq/L – 5.6 dKH) by
pressing the plunger of the syringe while gently swirling the Titrator. The test sample will
obtain the titration start color as shown on the instruction card after the first few drops
of titrant are added. Continue adding the titrant gradually, swirling the Titrator after each
addition and paying attention to the color in the vial. As the color in the vial approaches the
end color as shown on the instruction card, add one drop at a time, swirling after each drop,
until the end color is achieved.
Note: If you have added 1 ml of alkalinity titrant, without reaching the end color, the
alkalinity of your water sample is more than 5 meq/L (14 dKH). Refill the syringe and
continue to add titrant until you reach the end color.
6. Note the amount of titrant used (according to the initial and final position of the plunger
not the liquid surface) and use the table on the instruction card to calculate the level of
alkalinity in the water sample.

I don’t have the Red Sea pro this kit has the bulb dropper witch might explain the accuracy not being right.