6.4 ph and 7.4 high range ph?

[mjohns]

As the title suggests, im not sure which is correct?

Also i have added some salt lately does that mean my "freshwater ph color cards" will not be as accurate?

Thanks in advance.

 

[Lupin]

What salt did you use? What test kit did you use? Marine salt has buffers which "aquarium" salt doesn't. Any reason why you are adding salt? What fish are in the tank?

 

[Hawkfish3.0]

What he said. ^^

 

[mjohns]

What salt did you use? What test kit did you use? Marine salt has buffers which "aquarium" salt doesn't. Any reason why you are adding salt? What fish are in the tank?

Im pretty sure it was aquarium salt although it could be marine salt just came in a tupperware container with salt written on it.

I added salt to help with ich earlier and because ive added a few fish recently.

2 pictus catfish, 1 15-20cm barramundi, mystus catfish, mouth almighty, eel tail catfish and a white knightconfused

 

[Bderick67]

The 6.4 reading is probably correct. If you are testing for high pH then the test will just read as low as it can at 7.4. It is unlikely that you have added enough salt to require that you test with a saltwater kit.

 

[mjohns]

The 6.4 reading is probably correct. If you are testing for high pH then the test will just read as low as it can at 7.4. It is unlikely that you have added enough salt to require that you test with a saltwater kit.

Thanks alot, i guess i should get some PH UP then hey?

 

[Hawkfish3.0]

I'll assume you're using the API kit.

Never add anything to your tank unless you are 100% sure of the contents.

Assuming that it's just plain old NaCl, freshwater cards will be fine for reference. Which brings me to my final point, what exactly is your question? If you're asking which pH range to test, start with the low-range and if it is the color is at the top end of the scale, test again with the high range reagent to see if it is in the high range.

 

[mjohns]

I'll assume you're using the API kit.

Never add anything to your tank unless you are 100% sure of the contents.

Assuming that it's just plain old NaCl, freshwater cards will be fine for reference. Which brings me to my final point, what exactly is your question? If you're asking which pH range to test, start with the low-range and if it is the color is at the top end of the scale, test again with the high range reagent to see if it is in the high range.

yes im using api test kit, Thanks.

 

[japes]

The 6.4 reading is probably correct. If you are testing for high pH then the test will just read as low as it can at 7.4. It is unlikely that you have added enough salt to require that you test with a saltwater kit.

This man is correct.

 

[Bderick67]

Thanks alot, i guess i should get some PH UP then hey?

Depends on what fish you are keeping, most fish will adapt to this level. Maybe if your keeping african cichlids then you can take steps to adjust your water. More of a concern should be your carbonate hardness(kh) with a low pH your kh could be very low making for unsable pH levels.

What is the kh levels of both your tank and your tap water?

Have you tested the pH levels of tap water?