API pH Up
API pH Up is a liquid pH raising product designed for freshwater aquariums. It neutralizes acidic substances in the water, helping to make the water more alkaline.
The pH may return to its original level depending on the amount of acid present. Multiple treatments may be required to reach the desired pH level. If fish are present, the pH should not be changed by more than 0.2 within a 24-hour period.
Many common freshwater fish thrive in a pH range of 6.8 to 7.5, with a pH of 7.0 being ideal for a community aquarium. Proper pH adjustment can improve fish health, disease resistance, coloration, and breeding.
| Product Information |
|---|
| Form: Liquid |
| Usage: Freshwater aquariums |
| Function: Raises pH level |
| Recommended pH Range: 6.8–7.5 (ideal: 7.0) |
FAQ
Can I use pH Up if I have fish in my aquarium?
Yes, but the pH should not be changed by more than 0.2 in a 24-hour period to ensure fish safety.
How many times do I need to apply pH Up to see results?
The number of applications depends on the current acid level in the tank. Multiple treatments may be necessary to reach the desired pH level.
Will pH Up affect the water hardness or other water parameters?
pH Up specifically targets pH levels and does not alter water hardness or other parameters directly.

Samantha Cameron –
I’ve used pH Up twice to raise the pH from 6.2 to 7.0. My fish seem more active and the colors have improved. I made sure not to change the pH by more than 0.2 at a time. Works well for my community tank.
Leonard Peake –
The product is easy to mix and effective. After two applications, the pH stabilized at 7.1. My betta fish didn’t show any stress signs. I’d recommend it for tanks with low pH.
Audrey Fisher –
I used it once a week over three weeks to adjust pH from 6.5 to 7.0. My fish stayed healthy and the water clarity improved. No side effects observed.
Alexander Nolan –
It raised the pH, but I had to use it twice. The water felt slightly cloudy after the first use, but it cleared up. Not a quick fix, but effective over time.