In Stock: Order by 2PM EST for same-day shipping (M-F)
This item is in stock in our East and West Coast warehouses
Kent Marine Phosphate Sponge 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!
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!
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.
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 Aquarium Supplies
Kent Marine was established by aquatic hobbyists who saw a need for products that aid the user in creating the most natural enclosed marine and freshwater environment possible. From vitamin and mineral supplements to nutritional products and filter media, Kent Marine set the benchmark and was one of the first in the aquatic industry to provide these unique solutions. For the past 15 years, Kent Marine has been committed to providing effective ways to keep beautiful, healthy aquariums. Through continuous research, testing and development, new products like salt mix, scrapers and reverse osmosis filtration were brought into the Kent Marine family.
Accessories for Kent Marine Phosphate Sponge 1 Qt