Reef Crystals Alkalinity 7.6?

[Rhodesholar]

Hello everyone.

I am getting ready to do a water change and I mixed up a batch of Reef Crystals (which I will no longer be using as I will be switching to a different salt) but when I tested the Alk of the fresh batch with my Hanna tester it is reading 7.6.

Can anyone confirm this is accurate because I thought it mixed up higher then that and that seems pretty low to me.

Thanks to anyone who can confirm.

 

[bertoni]

That does seem a bit low to me. Have you double-checked the kit? I'd expect something above 11 dKH.

 

[Rhodesholar]

Jonathan,

Thank you for the reply.

It appears that test is accurate as my tank tested around 7.9 which I know is low but that seems right to me since I have not dosed alk for a bit.

I think it's time to switch salt brands.

 

[bertoni]

That might be a reasonable idea.

 

[outssider]

RC does not mix up anywhere near that low....something is wrong...

 

[Rhodesholar]

Checked the tank again after adding the water change water.

7.6

Added the proper amount to raise DKH 1.

Read 8.5

It's gotta be right.

 

[bertoni]

Well, those numbers do make me think the test kit is okay.