Direct information can be found here -> http://www.aquario.co.kr/neoConditioner/neoGuard.php

Aquario Neo Guard conditioner is designed for phosphate reduction. When there are excess phosphates in your aquarium, this could lead to algae issues. Neo Gaurd is best used as a preventative tool for keeping algae out of your tank, however, it can also aid as a part of the solution to an existing algae problem.

Usage and notes:

• Recommended to use 1 day prior to water changes
• Recommended to dose about 10 days after adding Amano shrimp or algae-eating fish
• One capful from the 300 ml bottle = 5 ml
• One capful from the 1000 ml bottle = 10 ml
• This product is mainly effective in preventing algae due to excessive phosphate
• If there is already an algae problem in the aquarium, the effectiveness of this product will be reduced
• Water may be cloudy immediate after dosing
• Shake before using
• This product is for aquarium use only, keep away from children or pets