Brightwell Aquatics Purit

Instructions and Guidelines

Before first use, rinse Purit under a stream of fresh water, then discard the water. *Used as directed, every 100ml of Purit will help maintain water quality in 25 US gallons (94.6L) for up to six months, depending upon the system's bioload and the rate of nutrient input to the system's initial nutrient concentrations, and efficiency of pre-existing filtration utilized. Proper and sensible management of aquarium chemistry by limiting the rate of nutrient input (e.g., not overfeeding or overstocking an aquarium system) and regular water changes will prolong the effectiveness of Purit.

Using a mechanical pre-filter to remove particulate organic material from aquarium water before interaction with Purit will prolong the media's effectiveness. Regardless of the application method, slowing the flow of water through the media will improve its efficiency. In general, forced, laminar flow (e.g., flow in one direction, not turbulent or "fluidized") of aquarium water through Purit will result in more rapid impurities extraction than placing the media inside a mesh bag and allowing it to remove impurities passively. Therefore, placing Purit in a canister filter for the first one or two applications to an aquarium will result in a significant decrease in the concentrations of latent dissolved organic material and other impurities, helping bring them under control; subsequently, Purit can be employed in a mesh bag, if desired, for long-term management of nutrients and impurities.

Expect Purit to exhaust more rapidly during the first application if the system is high in dissolved organic material. Subsequent applications will yield positive results for a much more extended period. Discard and replace Purit when signs of water discoloration begin to re-appear in the aquarium system. If using to remove chloramines from tap water, perform a test on filtered water to verify that Purit has not become exhausted before adding the water to an aquarium containing living organisms.

For canister filtration, load Purit into filter cartridge or in-line media housing, as directed by filter manufacturer. Some canisters may require that the media be housed inside a mesh bag within the housing. Use a 150-micron mesh filter bag (included) in this case.

For passive filtration, place Purit loosely in a 150-micron mesh filter bag and locate it in a low- to medium-flow area. Turning the bag over once weekly will serve to shift the media and increase this method's effectiveness.

Caution: Keep out of reach of children. Not for human consumption.