When used as directed, CrystalClear® pHGuard™ acts as a pH buffer that stabilizes pH levels and maintain buffering capacity at safe levels between 80-240 ppm. pHGuard™ will help prevent wide pH swings which are typical from morning to night. CrystalClear® pHGuard™ makes pond water safe for fish and plants and helps keep water balanced in the hot summer months. Keeping a properly buffered system is essential for the completion of the nitrification process which allows harmful ammonia to be converted to nitrite and then to nitrate.
Application Instructions Apply 1 ounce per 250 gallons once a week and after each water change. Since pH is typically lowest at dawn and highest at dusk, it is important to test pH at the same time of day.
Product Notices Drastic changes in pH may cause algae blooms, fish and plant stress and possibly death. Safe pH ranges for pond fish and plants is 6.5 – 8.0.