Clarity is the ultimate clarifier for both fresh and saltwater, It employs an advanced polymeric flocculating agent that is both reef and plant safe, Clarity is the only clarifier on the market that does it all! Clarity will clear all types of clouding including, but not limited to, chemical clouding and particulate clouding (i, e, stirred up gravel bed), Freshwater and Marine, Plant and reef safe, Size: 100 ml, SKU: RPS19874