@hybridazn got me intrigued in KZ Coral Snow awhile back. I love that fresh look carbon provides, but I didn't really want to run alot of Rox. I've tried KZ Coral Snow twice now and I love it. My RedSea reefer has never looked crystal clear like my AIO, potentially my MacroAlgae Reactor is the cause, but it looks like the water isn't there after CoralSnow. I intend to use it every Sunday night and 1.5ml is fine for RedSea Reefer 170, so a $20 bottle will last me almost 15 months.