UltraClear pH Higher – Pond pH Increaser
- Raises low pH in ponds and water gardens
- Liquid formula for measured, gradual adjustments
- Starting dose: 5 fl oz per 1,000 gallons, following the label
- Keep circulation running and retest after 24 hours
- Available in 32 fl oz and 1 gallon
Description
Raise low pond pH with a measured, gradual approach.
UltraClear pH Higher helps increase pH in acidic pond water. Use it when testing shows your koi pond or water garden needs an upward adjustment, then retest to track the change.
Test first, then adjust
- Raises low pH: formulated for ponds and water gardens that need a higher pH.
- Easy liquid application: measure the dose for your pond volume and distribute with circulation running.
- Supports pond balance: helps you maintain suitable conditions for fish, plants and biological activity.
- Two bottle sizes: choose 32 fl oz or 1 gallon.
Starting dose
Begin with 5 fl oz per 1,000 gallons, following the directions on your bottle. Equivalent examples:
- 100 gallons: 0.5 fl oz
- 500 gallons: 2.5 fl oz
- 1,000 gallons: 5 fl oz
How to use
- Test pond pH and estimate the water volume before dosing.
- Dilute the measured dose in at least 1 gallon of pond water, then distribute evenly with circulation or aeration running.
- Retest after 24 hours. Adjust gradually; do not change pH by more than 0.5 units in 24 hours.
- Follow the label for any smaller follow-up doses and continue testing.

A common pond target is pH 6.8–8.0; use a range appropriate to your fish and pond. The amount of change depends on your water chemistry, so dosing does not replace testing.
Common questions
Should I use this without testing?
No. Confirm that pH needs to rise before adding pH Higher, and retest before repeating a dose.
How soon should I check again?
Check after 24 hours. Make gradual adjustments based on the test results and package instructions.
Does this lower high pH?
No. pH Higher is for raising pH. Use the appropriate product and label directions when a downward adjustment is needed.
Related guide: Pond pH, Alkalinity and Water Chemistry Guide
Raise low pond pH with a measured, gradual approach.
UltraClear pH Higher helps increase pH in acidic pond water. Use it when testing shows your koi pond or water garden needs an upward adjustment, then retest to track the change.
Test first, then adjust
- Raises low pH: formulated for ponds and water gardens that need a higher pH.
- Easy liquid application: measure the dose for your pond volume and distribute with circulation running.
- Supports pond balance: helps you maintain suitable conditions for fish, plants and biological activity.
- Two bottle sizes: choose 32 fl oz or 1 gallon.
Starting dose
Begin with 5 fl oz per 1,000 gallons, following the directions on your bottle. Equivalent examples:
- 100 gallons: 0.5 fl oz
- 500 gallons: 2.5 fl oz
- 1,000 gallons: 5 fl oz
How to use
- Test pond pH and estimate the water volume before dosing.
- Dilute the measured dose in at least 1 gallon of pond water, then distribute evenly with circulation or aeration running.
- Retest after 24 hours. Adjust gradually; do not change pH by more than 0.5 units in 24 hours.
- Follow the label for any smaller follow-up doses and continue testing.

A common pond target is pH 6.8–8.0; use a range appropriate to your fish and pond. The amount of change depends on your water chemistry, so dosing does not replace testing.
Common questions
Should I use this without testing?
No. Confirm that pH needs to rise before adding pH Higher, and retest before repeating a dose.
How soon should I check again?
Check after 24 hours. Make gradual adjustments based on the test results and package instructions.
Does this lower high pH?
No. pH Higher is for raising pH. Use the appropriate product and label directions when a downward adjustment is needed.
Related guide: Pond pH, Alkalinity and Water Chemistry Guide