High alk

[EeyoreIsMySpiritAnimal]

Regardless, you need to determine how high the alk in your tap water is.

 

[Jekyl]

Yeah, but there is air so even though the bottom is at 1 ml, there is still air so the reagent only reaches I believe .8

No, the air is accounted for.

 

[Randy Holmes-Farley Verified Community Expert]

This thread details how to properly read a syringe. Any air should be ignored. Just look at the movement of the end of the plunger:

https://www.reef2reef.com/threads/reef-chemistry-question-of-the-day-161-using-a-syringe.226267/

 

[bensoo00]

I was doing some reading and my live rock might be made of limestone. Is this possibly what is causing my alk to be high?

 

[bensoo00]

and for the test ill try it again tomorrow correctly and see what I get as the reading

 

[TokenReefer]

I was doing some reading and my live rock might be made of limestone.

https://reefs.com/magazine/aquarium-chemistry-calcite-aragonite-limestone-and-more/

 

[Randy Holmes-Farley Verified Community Expert]

I was doing some reading and my live rock might be made of limestone. Is this possibly what is causing my alk to be high?

Nope.