GH problem...Help

Gnome

Large Fish
Oct 22, 2002
211
0
0
Shadow Moses Island
#1
I have a 6 dGH tap water, and the tank now have 10-11 dGH.
mM tank always lost a half bucket of water every week and the dGH is increasing because of that, I have a hood but it doesn't stop the water from decreasing(evaporates), I change 1 bucket of water every week. so it is like I'm adding a half bucket to the tank every week(or you can say I'm adding the Gh concentration)..what should I do?