Purisen quickly removes soluble and insoluble impurities from aquarium water. Use Purisen in your internal or external filter with high water flow. It will not function properly in filterless aquariums. Depending on the level of organic impurities in the aquarium, 100ml of Purisen is sufficient for 400 liters of water, and 500ml is sufficient for 2000 liters. Since Purisen also absorbs organic waste like fish and food residue, a bleach (chlorine) solution must be used for renewal. The bleach used in the solution must be additive-free, detergent-free, and contain only chlorine. Use a 1:1 bleach solution.
Step 1: Soak Purisen in a chlorine solution in a non-metal container for 24 hours in a well-ventilated area, away from children.
Step 2: After 24 hours, rinse thoroughly. Then, add 15ml (2 caps) of Crystalpro Aqua Conditioner or an equivalent-strength water conditioner to a glass of water and soak Purisen in this dechlorinating solution for 4 hours.
Step 3: Once you confirm the chlorine smell is gone, soak Purisen for 2 hours in a solution containing 15ml of Liquid Mineral Salt or a tablespoon of table salt per glass of water. Purisen is now ready for use.
Additional Notes:

If there is any suspicion of a chlorine odor, soak Purisen in the Aqua Conditioner solution for another 4 hours.
Use only after the chlorine smell is gone or is confirmed absent via a chlorine test kit.
Do not use Purisen alongside health treatments like Spotex or Nitrozone.
When not in use, store Purisen in clean water and avoid letting it dry out.
Suitable for freshwater and saltwater aquariums.
In planted aquariums, Purisen may reduce nitrate levels but will not deplete other minerals.