Is high alk dangerous?

[Fungus]

I am using Instant Ocean reef master test kit to monitor water in a 10G tank. Initially, pH = 7.8 and alk 3.5. After supplementing water with Seachem marine buffer, pH = 8.3, but and alk = 7.0 (which is outside the kit's range) according to test kit! Is this expected or dangerous to livestock?

 

[iDream]

Don't personally know about that but you shouldn't use those buffers anymore.

As long as your pH is stable and a little low its better than fluctuating and sometimes right.