High surface area porous media is ideally used as a last step in the biofiltration process and plays a great role to stabilize pH and mineral content while further polishing and refreshing water quality.

For pH stabilizing use 40-60 lbs per 1000 gallons of water. 

Replace every 12 months

For mineral enrichment and polishing use 20-40 lbs per 1000 gallons of water. 

Refill every 2-3 years as mineral contents are slowly releasing in the water.

XMWT205: 5.5" Stones 27pcs

XMWT206: 3.9" Stones 48 pcs

XMWT207: 2.1" Stones 448 pcs

XMWT208: 1.4" Stones 4.4 lbs

XMWT209: 0.8" Stones 4.4 lbs