Parameter matching for fish only tanks

[piranhaman00]

Hello,
Is matching alkalinity important for fish only tanks? Are fish sensitive to all, Ca Mg changes?

thanks!

 

[Cory]

In my experience if your fish are fed well, there isnt much that will hurt them.

Mag,cal and alkalinity dont effect fish much. Imo it is the ph that is more important when with alkalinity changes than the bufferring capacity as a number like dkh.