My god dude, this is who I've been arguing with? You've run a 23g BRACKISH FOWLER tank with a single puffer for the past 2 years, with 500 GALLONS worth of purigen in a media reactor. You just added corals a few months ago (GSP, Leathers, and a full tanks worth of SPS frags for some reason), decided to raise your salinity months after, dosed your dKH to 14.5 with kalkwasser and killed almost everything. Not to mention that you're testing with an API Reef Master kit. You're in no position to be arguing with anyone, let alone posting "my first fish tank" videos in threads where people are discussing actual reef chemistry. You seriously can't make this up. God I love reef2reef.
I don't use any purigen haven't for a long time.
Most of what you say and assume about me is not correct. Watch that video and learn before you diss water changes.