Will my hard water harm my fish ?

[Rob 28]

Hi guys,

Tested my water hardness for first time today (tank 3 weeks old) and the KH is 11 degrees (200ppm) and the GH is 18 degress (320ppm)

The KH is ok but the GH is well high eh ? I've read conflicting things. One source said that my fish, listed below, are perfectly happy in these ranges and another source said that my water should be no more than 12 degress GH. The fish are from my very lfs - 2 mins drive - so shouldnt they be used to the water ?

I really dont want to mess about with this aspect of the water as im a beginner. SHould i add a filter to my tap to lower the hardness ?

Thks in advance for your help.

 

[kribs mate]

whats yout PH?

ever though of keeping malawis?

 

[Rob 28]

PH is 7.2 - is that more important than the hardness ? i know its related.