Alg'out will trap phosphates in the water and make them unavailable for algae growth. This product acts on the long term by eliminating one of the main causes of algae prolifereration.
Directions of Use: use the product once and repeat the operation the following weeks in necessary, after having tested your water for phosphates. Pour Alg'out at the exit of your filtration. Proceeds to a regular water change every 2-3 weeks (20-30% of the volume of the aquarium).