TheFishDude

Trust me I know but this method that I use is usually only for tanks 20g and under Sent from my iPhone using Tapatalk

I do understand that, which is why I said cut it with tap water or spring water to get the minerals you need, without raising them to unsafe levels Sent from my iPhone using Tapatalk

I work at an LFS and I tell customers to cut their tap water with RO water, it will dilute any harmful chemicals and lower KH and GH usually to perfect levels, or use half distilled and half spring water if you can't get RO Sent from my iPhone using Tapatalk