lowering GH

[pitchblack]

Hi all just wondering if anyone knows how to lower Gh levels

here are my tank specs

ph 6.3
kh 2gdh
gh 5gdh
iron 0.25
ammonia 0
nitrate 0
nitrite 0

Cant seem to get the gh lower than 5 would like it to be around 2-3 at the max

[sunshinediscus]

Not sure why you would want to lower your GH, looks pretty good to me. But if you decide to do it just mix some RO/rain water with your water.