The UltraClear Buffer Block will stabilize the pH and increase water hardness and alkalinity in your pond. Low or no buffering capacity (low alkalinity & calcium carbonates) causes the pH of the pond to become unstable resulting in wide swings of the pH.

The UltraClear Buffer Block adds essential calcium needed for healthy fish bone growth. It also enhances the growth and survival of beneficial bacteria for a healthy, beautiful pond. Great for snails!

DOSAGE & DIRECTIONS: Buffer Block (Lg) treats ponds up to 2000 gallons. Place the Buffer Block in the main water flow of the skimmer, filter or waterfall. Lasts up to 3 weeks. Replace when dissolved.

WARNING: Eye Contact: Immediately flush with plenty of water for at least 15 minutes. Get medical attention. Skin contact: Wash thoroughly with soap and water. Ingestion: Do not induce vomiting. Get medical attention immediately. Emergency Phone 800-847-8950.