UltraClear Buffer Block – Pond pH & Alkalinity Support
- Stabilizes Pond pH Naturally: Helps reduce harmful pH swings in low-buffering ponds by gradually increasing alkalinity and hardness.
- Supports Fish Health & Beneficial Bacteria: Releases essential calcium to support healthy fish bone growth and beneficial bacterial activity.
- Long-Lasting, Maintenance-Free Care: One block treats up to 2,000 gallons, for up to 3 weeks—just place in high flow zones (skimmer, filter, waterfall) and replace when dissolved.
- Eco-Safe & Gentle: 100% natural, chemical-free, and pet-safe. Safe for koi, goldfish, aquatic plants, pets, and wildlife when used as directed.
Description
Slow-release support for more stable pond water chemistry.
UltraClear Buffer Block supplies calcium and alkalinity to help buffer pH swings associated with low alkalinity. Place it in moving water and let the block dissolve gradually.
Help maintain pond balance
- Supports pH stability: helps buffer fluctuations when alkalinity is low.
- Supplies calcium: contributes minerals to the pond environment.
- Supports biological activity: helps maintain conditions for beneficial bacteria.
- Simple placement: use in a skimmer, waterfall or filter area with good water flow.
How many blocks to use
- 1,000–2,000 gallons: 1 block.
- 2,000–4,000 gallons: 2 blocks.
- Larger ponds: 1 block per 2,000 gallons, following the label.
Distribute multiple blocks across separate high-flow areas where practical. Each block lasts up to about 3 weeks; replace when dissolved. Continue testing pond pH and alkalinity to guide your routine.
Common questions
Where should I place the block?
Choose a high-flow location such as a skimmer, waterfall or filter where water can circulate around it.
When should I replace it?
Check regularly and replace when dissolved. Dissolution time depends on conditions and can be up to about 3 weeks.
Is this the same as a liquid pH adjuster?
No. Buffer Block provides slow-release calcium and alkalinity support. Use a measured pH adjuster only when testing shows a specific upward or downward adjustment is needed.
Related guide: Pond pH, Alkalinity and Water Chemistry Guide
Slow-release support for more stable pond water chemistry.
UltraClear Buffer Block supplies calcium and alkalinity to help buffer pH swings associated with low alkalinity. Place it in moving water and let the block dissolve gradually.
Help maintain pond balance
- Supports pH stability: helps buffer fluctuations when alkalinity is low.
- Supplies calcium: contributes minerals to the pond environment.
- Supports biological activity: helps maintain conditions for beneficial bacteria.
- Simple placement: use in a skimmer, waterfall or filter area with good water flow.
How many blocks to use
- 1,000–2,000 gallons: 1 block.
- 2,000–4,000 gallons: 2 blocks.
- Larger ponds: 1 block per 2,000 gallons, following the label.
Distribute multiple blocks across separate high-flow areas where practical. Each block lasts up to about 3 weeks; replace when dissolved. Continue testing pond pH and alkalinity to guide your routine.
Common questions
Where should I place the block?
Choose a high-flow location such as a skimmer, waterfall or filter where water can circulate around it.
When should I replace it?
Check regularly and replace when dissolved. Dissolution time depends on conditions and can be up to about 3 weeks.
Is this the same as a liquid pH adjuster?
No. Buffer Block provides slow-release calcium and alkalinity support. Use a measured pH adjuster only when testing shows a specific upward or downward adjustment is needed.
Related guide: Pond pH, Alkalinity and Water Chemistry Guide