“Basis Power Cleanse-XL” is a supreme quality high activity synthetic filtration resin particularly selected for sensitive aquarium environments. “Power Cleanse XL” contains huge numbers of mesoporous and macrospores suited to adsorption of a wide range of organic pollutants with zero impact on trace minerals and pH. “Power Cleanse XL” will remove stains, dissolved organics and toxic gases in marine, brackish and freshwater systems. It will outperform carbon in many environments and is more economical because it can be regenerated. It turns brown or shades of yellow indicating exhaustion and need for regeneration. It is regenerable over and over again for a minimum of 2 years in normal use.