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Kent Marine Aquarium Filter Media Information

Kent Marine Phosphate Sponge Filter Media Phosphate Sponge Filter Media

Description: Kent Marine Phosphate Sponge Filter Media is not an algaecide, but a ceramic medium which will adsorb phosphates quickly (within hours) when placed directly in the water flow. Works in fresh and saltwater 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. For silicate to be removed, phosphates must first be removed. Beads are cracked to expose more surface area and increase efficiency! This product will not release soluble aluminum compounds into your aquarium, causing negative reactions from your inverts, as competing products may. Will also absorb moisture for use as an air dryer for ozone, and can be renewed over and over in moisture removal service!

Directions: Rinse with fresh water (preferably reverse osmosis or deionized water) WARNING: PRODUCT MAY GET VERY HOT THE FIRST TIME IT IS WET! Use rubber gloves and/or place in a plastic container while rinsing! Place in a large mesh bag (800 micron) or a canister filter, directly in the water flow. Make sure water flows through the material and not just around it. Leave for 8 hours to 2 days maximum (as with any phosphate adsorber, phosphates can be re-released into the system if initial charge is left in the system continuously. If you want to leave in the system to keep phosphates low or to remove silicates, replace initial charge with brand new, and change on a regular basis.) For silicate removal, phosphate must first be removed, then a new charge of Phosphate Sponge must be left in the system for several days.

Considerations for use: Many municipal water companies add phosphates to the tap water to assist in controlling lead consumption by humans. Sodium Silicate (water glass) is also added to help reduce pipe corrosion. Phosphates and silicates also naturally occur in rivers and lakes. Phosphates and silicates are nutrients or fertilizers which, given proper lighting and other nutrients, will promote rapid growth of undesirable algae, diatoms and cyanobacteria. When used as directed, Phosphate Sponge will lower the levels of these fertilizers to help reduce growth of these unsightly nuisances. Successive replacement of charges of Phosphate Sponge may encourage a die off of hair algae!

Renewal: For phosphate removal, renewal may or may not be possible, depending on conditions of use. At best, product may be renewed two times, depending on circumstances of use, and capacity will be much lower each time. To renew, spread 1/4" thick on a baking pan. Place in a 450 degree oven for one hour. Let cool. Rinse with fresh water and re-use. When reusing, leave for 8 hours, maximum. Do not use pan for food.

Precautions: WARNING: PRODUCT MAY GET VERY HOT THE FIRST TIME IT IS WET! Use rubber gloves and/or place in a plastic container while rinsing!

Kent Marine Reef Carbon Filter Media Reef Carbon Filter Media

Description: Kent Marine Reef Carbon Filter Media removes organic pollutants, stains, and entrained toxic gases in marine and freshwater aquariums or ponds. Contains the finest pelletized activated 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! Engineered for water flow, will not clog easily like small granular or pelleted carbons. Out performs any carbon especially coconut shell!

Directions: Reef Carbon is dusty. This is a necessary characteristic of the finest carbons and is a small price to pay for a carbon that is so active, low in phosphates, and ash, so rinse well in cold running tap water. This will take some effort. IN THE AQUARIUM: Place in a polyester bag or filter chamber and position for maximum water flow through the carbon. IMPORTANT: You can use as any other carbon, but best results will be obtained by using any carbon for only 3 days per month or so. (This is because any carbon will continue to remove trace elements long after it is totally plugged with organics.) Use only enough to remove the color from the water.

Considerations for use: Reef Carbon is also soft (this is due to pore size and makeup) and could release dust into the system if mechanically stirred too rapidly. Do not place where water will drop a large distance directly onto the product or churn it violently. Because Reef Carbon is so active, you can use considerably less than with other carbons (about 1/4 lb. or 1 cupful per 100 gallons of tank capacity, you may need more or less depending on how dirty the tank is). Reef Carbon will have done its job, so dose the tank with Kent Marine Essential Elements, Discus Essential, Freshwater Essential, or A F Cichlid Rift Lake Trace Elements as appropriate for your type of system to restore trace elements removed by any carbon. CAUTION: Recent products introduced by other manufacturers that contain strong enzymes may dissolve the binder that holds Reef Carbon together. If this happens the carbon can come apart and cause an ugly mess in your tank. Because of this, DO NOT USE ENZYME PRODUCTS WITH Reef Carbon! Simply remove the carbon, use the product, then replace the carbon several days later.

Contents: Bituminous coal based, steam activated, pelletized carbon.

Precautions: Rinse well prior to using.

Kent Marine Nitrate Sponge Filter Media Nitrate Sponge Filter Media

Description: Kent Marine Nitrate Sponge Filter Media is a granular zeolitic medium which works by two methods. 1) It slowly directly adsorbs 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 or tap water to remove toxic ammonia directly! Nitrate Sponge prolongs the time allowed between water changes by keeping nitrates low!

Directions: Place Nitrate Sponge in a large mesh (800 micron) bag on top of your wet-dry filter or in a canister filter, where water will flow through the material. It can be used as an excellent media in de-nitrators and other slow-flow applications, and is more efficient in this type usage (see below). Test nitrates regularly. Several weeks will be required to see an appreciable drop in nitrates. (Caution: nitrate testing is the most difficult of all aquarium tests, and many aquarium test kits are inaccurate for marine systems. We recommend that you use the SeaTest™ or FasTest™ test kit by Aquarium Systems® for accurate results!)

Considerations for use: Nitrates are best brought down initially with large water changes with a low nitrate salt, such as Kent Marine Sea Salt. Deionization or reverse osmosis filtration of tap water nitrates will also help if your tap water contains significant levels of nitrates. Each treatment of Nitrate Sponge will reduce nitrates by about 20 ppm (total nitrates) for the stated size. Not overfeeding the tank, good maintenance practices, regularly vacuuming of detritus, regular use of Kent Marine Reef Carbon, and regular changing of filter floss are critical to nitrate control and water changes are absolutely necessary! Products which contain gluconates, other sugars and heavy organic chemicals should be avoided since they will foster undesirable growth of cyanobacteria. Phosphates and silicates are also nutrients or fertilizers which, given proper lighting and other nutrients, will promote rapid growth of undesirable algae, diatoms and cyanobacteria also. Kent Marine Phosphate Sponge can be used simultaneously with the Nitrate Sponge to lower the levels of these fertilizers and help reduce growth of these unsightly nuisances.

Anaerobic Denitrator: If you have a bad nitrate problem, consider purchasing a filter housing in which to place the Nitrate Sponge. Fill this housing with aquarium water and let stand totally closed, with no water movement for 3 weeks. This will give the bacteria time to multiply and populate the Nitrate Sponge. Tap your main pressure line from your aquarium pump with small airline tubing and a small air valve. Adjust the valve to allow one drop per second to flow out of the filter back into your sump. This unit requires no feeding and therefore cannot produce deadly hydrogen sulfide gas as other systems might.

Kent Marine - Marine Biosediment Filter Media Marine Biosediment Filter Media

Description: Kent Marine - Marine Biosediment Filter Media is a biofiltration substrate for Refugiums, Mud Filters, All Marine Aquariums, and Seagrass Beds

What is Marine Biosediment?: Kent Marine - Marine Biosediment is a blend of aragonite, calcite, and other minerals; it is not any mere aragonite substrate. Marine Biosediment has been formulated in ratios that not only provide a much more natural substrate composition and density than using plain aragonite alone, but also to slowly dissolve as a result of natural solubility and close-proximity bacterial respiration, simulating the processes at work in sediment found on reefs, in lagoons and sea grass beds, and around mangroves. Rather than being a blend of terrigenous (terrestrial in initial origin, i.e. silica sand, humus, etc.) particles, Marine Biosediment is composed of minerals naturally occurring in the afore-mentioned marine habitats, and therefore brings the aspiring hobbyist one step closer to providing his/her aquarium inhabitants a truly representative piece of the ocean. Over time, Marine Biosediment slowly releases trace amounts of calcium and other elements due to microbial processes taking place below the surface of the substrate; again, this simulates natural cycles taking place in benthic marine ecosystems. To calculate the number of pounds of Marine Biosediment needed to obtain a particular sediment depth in a refugium, follow this formula:

(Refugium L (in.) x Refugium W (in.) x Desired Depth of Marine Biosediment (in.)) x 0.05 = # lbs. Biosediment needed


Directions: Read Use and Interaction on opposite label. Employ about 5 pounds of Marine Biosediment for every 25 gallons of actual water volume in the entire system. For use in refugiums and mud filters (recommended), the depth of the Biosediment should be 3-4” for optimal denitrification; in display aquariums in which Marine Biosediment is the sole substrate, it’s not recommended that the depth of the Biosediment exceed 2”. It is recommended that this product be placed in dry, clean aquariums or refugiums before water is added to avoid unnecessary turbidity. Slowly add water to the desired height, then anchor algae in place; allow 2-3 hours for any cloudiness to clear up before turning on pumps. Caution! Not for human consumption. Keep out of reach of children!

Considerations for use: Kent Marine - Marine Biosediment Filter Media is 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! The average particle size of these minerals is in accordance to natural reef sediment composition, particularly that present in reef flats and lagoons, where aquatic vegetation is both prevalent and important to the reef ecosystem as a whole. Marine Biosediment may be used as a primary substrate in reef and fish-only marine aquariums, although it is largely intended for use in refugiums and mud filtration systems. 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. For maximum effectiveness, place Marine Biosediment in a refugium and provide only enough water flow so as to prevent sediment from being lifted into the water column. This product will dissolve very slowly over the course of time; it is recommended that new Marine Biosediment be added yearly to replace that which has dissolved. Small sand-sifting fishes and invertebrates such as sleeper gobies, burrowing worms, crustaceans, echinoderms, and mollusks can be housed directly with Marine Biosediment, as their surface-sifting action may enhance denitrification in lower layers.

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