Kent Marine Biosediment A substrate composed of minerals typically found in and around tropical reefs. It is a blend of completely suitable materials, and contains no silicates, organics, phosphate, or nitrogen! Marine Biosediment may be used as a primary substrate in reef and fish-only marine aquariums. The benefits of using Marine Biosediment are numerous: macroalgae, mangrove seedlings, and turtle grass have the proper substrate composition in which to gain purchase, the collective density of the substrate is conducive to rapid denitrification (with time, bacteria naturally remove nitrate), and the metabolic products of bacteria facilitate a slow rate of mineral dissolution, releasing calcium, magnesium, strontium, potassium, carbonate, sulfate, and trace elements to the system’s inhabitants.

SKU: MB6   (treats 30 Gallons) Price: $11.45  Quantity: SKU: MB12   (treats 60 gallons) Price: $17.15  Quantity:

Nitrate Sponge This granular zeolitic medium works by two methods. 1) It slowly directly absorbs small amounts of ammonia that are released by fish and natural processes, and 2) it fosters anaerobic bacterial denitrification due to its physical porous structure. This denitrification slowly reduces nitrate levels in the aquarium. It works well in freshwater tanks as well, or on tap water to remove toxic ammonia directly! Nitrate Sponge prolongs the time allowed between water changes by keeping nitrates low.

SKU: NS50   2 dry quart (treats 50 gallons) Price: $7.50   Quantity:

Reef Carbon Removes organic pollutants, stains, and entrained toxic gases in marine and freshwater aquariums or ponds. Contains the finest pellitized activation bituminous coal based carbon. Pore size is in the 20 to 2,000 Angstrom range, ideally suited for removal of large organic molecules. Super activated with very high iodine and molasses numbers. Less than .2% ash, making it suitable for sensitive species such as discus. Will not leach phosphates or promote undesirable algae growth, suited to sensitive reef systems.

SKU: RC1   1 dry quart (treats 400 gallons) Price: $7.50   Quantity: SKU: RC2   2 dry quarts (treats 800 gallons) Price: $13.50   Quantity: SKU: RC4.5   1 dry gallon, 4.5 lb Price: $29.50   Quantity:

Phosphate Sponge This ceramic medium will absorb phosphates quickly (within hours) when placed directly in the water flow. Works in saltwater and freshwater aquariums or ponds to bring about 1.0 ppm of phosphate or silicates down to less than .05 ppm in a 120-gallon tank for every dry quart of medium. This product will not release soluble aluminum compounds in to your aquarium, as some competing products may. Will absorb moisture for use as an air dryer for ozone, and can be renewed over and over in moisture removal service.

SKU: PS1   1 dry quart (treats 120 gallons) Price: $10.50   Quantity: SKU: PS2   2 dry quarts (treats 240 gallons) Price: $19.00  Quantity: SKU: PS5   1 dry gallon Price: $29.00   Quantity:

	Organic Adsorption Resin Removes organic pollutants, stains, and entrained toxic gases to provide a pure environment in marine and freshwater aquariums. Contains special form macroporous organics adsorption resins, and reduces or eliminates carbon usage. May be regenerated. White beads will turn yellow or brown indicating exhaustion and need for regeneration. Resin life is about 2 years.
SKU: EOA8   8 dry oz (treats 120 gallons) Price: $10.75   Quantity: SKU: EOA16   16 dry oz (treats 240 gallons) Price: $19.00   Quantity:

Toxic Metal Sponge Safely removes heavy metals. Is safe for use in all aquatic systems. Removes copper, lead, mercury, and other heavy metals from marine and freshwater aquariums, and tap water. Toxic Metal Sponge contains special form macroporous cation exchange resins. May be regenerated. Light beads turn a slight blue or gray, indicating exhaustion and need for regeneration. Resin life is about 2 years.

SKU: TMS250   250 dry ml (treats 60 gallons) Price: $10.25  Quantity:

	Mixed Bed Resin High tech resin removes organic pollutants, stain, and entrained toxic gases to provide a pure environment in marine and freshwater aquariums. Contains special form macroporous organic adsorption resins. Reduces carbon usage. May be regenerated. Darkens, indicating exhaustion and need for regeneration. Resin life is about 2 years.
SKU: MBR250   250 dry ml (treats 60 gallons) Price: $7.75   Quantity: