What is Coral Snow?!?
Coral Snow liquid will help with yellowing compounds that activated carbon misses. It has also been shown to be beneficial in treating unwanted slime algae and cyanobacteria. The product contains natural calcium-magnesium carbonate and other specialized compounds. Clay-like composition and properties make for a highly absorbent medium that can be taken up by corals and protein skimmers.

For those of you familiar with the KZ brand, know this stuff goes for $20/100ml I'm selling it for $5 for 16oz
This is the exact same stuff with 99%purity!
Your bottle will be full, of course.