I cant measure KH ..
.. for my sera test , I have 8
.. for aquarium pharmaceuticals I have 8
3 different salifert KH tests …
the old one .. almost finish .. read 8
The others are new .. from different LFS and exp date .. and I read 11.5 dKH both the same
what i have to believe ?
thank you !
.. for my sera test , I have 8
.. for aquarium pharmaceuticals I have 8
3 different salifert KH tests …
the old one .. almost finish .. read 8
The others are new .. from different LFS and exp date .. and I read 11.5 dKH both the same
what i have to believe ?
thank you !