API Ph Up 118ml
The API® pH Up Water Adjuster is a fast-acting, easy-to-use solution designed to increase pH levels in your aquarium when water becomes too acidic. Maintaining proper pH balance is vital for your fish’s health, as different species thrive at specific pH ranges.
This phosphate-free and nitrate-free formula won’t cloud water or encourage algae growth, making it ideal for regular use in both tropical and freshwater aquariums. Colourless and safe for fish and plants, API pH Up ensures a balanced, stable aquatic environment for your tank inhabitants.
Key Features & Benefits
- Raises pH safely: Increases alkalinity when water becomes too acidic
- Fast-acting formula: Provides quick and accurate pH adjustment
| Product Details |
|---|
| Volume: 118ml |
| Form: Liquid |
| Ingredients: Phosphate-free, Nitrate-free |
| Safe for: Fish and aquatic plants |
FAQ
How long does it take for API Ph Up to adjust the pH level?
The effect is typically noticeable within 15 to 30 minutes after adding the solution to the aquarium water.
Can API Ph Up be used in both freshwater and tropical tanks?
Yes, it is suitable for use in both freshwater and tropical aquariums.
Is API Ph Up safe for fish and plants?
Yes, it is safe for fish and aquatic plants as it is phosphate-free and nitrate-free.

Audrey Taylor –
I’ve used API Ph Up several times since my tank’s pH dropped below 6.0. It worked quickly and didn’t cause any stress to my fish. The water stayed clear and my plants looked healthy. Easy to measure and mix.
Adam Quinn –
It’s effective for raising pH when it gets too low. I added a small amount and saw a noticeable change within an hour. No algae issues, which is a relief. Works well in a 55-gallon tank.
Paul May –
My betta fish was showing signs of stress when the pH dropped. After using API Ph Up, the levels stabilized and the fish seemed more active. No side effects or cloudiness in the water.