Directions for use: For best results, remove activated carbon or filter cartridge from filter and continue aeration. For each 10 gallons (38L) of water, empty one packet directly into aquarium. Repeat dose after 48 hours. Wait another 48 hours then change 25% of the aquarium water and add fresh activated carbon or replace filter cartridge. This package treats up to 100 gallons. Two doses required for full course of treatment.
* Ingredients and dosage listed are for informational purposes only and are subject to change by the manufacturer. Always refer to the manufacturer and actual product label/inserts for current ingredients, recommended dosage, precautions and warnings before use.