---
product_id: 397902598
title: "API pH Up, 4 OZ"
brand: "api"
price: "FREE"
currency: EUR
in_stock: false
url: https://www.desertcart.pt/products/397902598-api-ph-up-4-oz
store_origin: PT
region: Portugal
---

# Optimized for diverse fish species 4 fl oz concentrated liquid Precise pH balancing API pH Up, 4 OZ

**Brand:** api
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Elevate your aquarium’s vibe with precision pH control!

## Quick Answers

- **What is this?** API pH Up, 4 OZ by api
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/397902598-api-ph-up-4-oz)

## Best For

- api enthusiasts

## Why This Product

- Trusted api brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **BPA-Free & Safe:** Formulated without harmful chemicals, protecting your aquatic ecosystem and family.
- • **Easy-to-Use Liquid Formula:** Just a few drops raise pH quickly and safely without stress to aquatic life.
- • **Maintain Optimal pH Levels:** Keep your aquarium water perfectly alkaline to support vibrant, healthy fish.
- • **Trusted by Experts for 60 Years:** API’s proven formula ensures consistent water quality and fish vitality.
- • **Boost Your Aquarium’s Ecosystem:** Regular use prevents acidic water conditions that can harm your fish and plants.

## Overview

API pH Up is a 4-ounce liquid solution designed to safely raise and maintain alkaline pH levels in aquarium water. Trusted for nearly six decades, this BPA-free formula supports diverse fish species by preventing acidic conditions, promoting a healthy, vibrant aquatic environment with easy weekly maintenance.

## Description

API pH Up, 4 OZ : desertcart.ae: Patio, Lawn & Garden

## Features

- API pH UP pH adjuster raises pH levels in your aquarium to make water more alkaline when levels fall too low.
- pH is the measure of acidic or alkaline conditions in water, where a value of 7.0 corresponds to a neutral pH, pH values about 7.0 are considered alkaline, and pH values below 7.0 are considered acidic.
- Different fish need different pH levels to be healthy, so it is important to test your water regularly to ensure pH levels fall where they should.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002AQMVO |
| Allergen Information | BPA-Free |
| Brand Name | API |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,755) |
| Global Trade Identification Number | 00317163030318 |
| Item Form | Liquid |
| Item Type Name | API pH Up, 4 OZ |
| Item Weight | 136 g |
| Liquid Volume | 4 Fluid Ounces |
| Manufacturer | API |
| Manufacturer Part Number | 31C |
| Model Number | 31C |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pet Type | Fish |
| Target Species | Fish |
| UPC | 317163030318 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** API
- **Item form:** Liquid
- **Item weight:** 136 g
- **Liquid volume:** 4 Fluid Ounces
- **Number of Packs:** 1

## Images

![API pH Up, 4 OZ - Image 1](https://m.media-amazon.com/images/I/610GEsBLa3L.jpg)

## Questions & Answers

**Q: How long after using do you re- test to see how much the pH went up?**
A: We would recommend waiting about a half-hour in order for the water to fully circulate so that you get an accurate reading. If you have a very large system or very little flow, you may want to wait 1-2 hours. You are safe to re-dose at that point as long as you have not changed more than 0.2 in pH, which is the maximum we recommend changing within a 24 hour period to reduce fish stress. If you have any other questions, feel free to reach out to us at 1-800-847-0659 or APITechServices@effem.com

**Q: Can this be used in a tank with invertebrates?**
A: Yes. Many years ago this was labeled for ponds

**Q: This should be fine for a Brackish tank?**
A: You can use it however the KH of a brackish tank might prevent you from lowering the ph.  Please contact API at 1-800-847-0659 and we can help.

**Q: does this come with both ph up and down? Or just one of the two?**
A: Just one bottle,ph up!

## Frequently Bought Together

- API pH UP Freshwater Aquarium Water pH Raising Solution for fish,4-Ounce Bottle, Brown
- API TAP WATER CONDITIONER Aquarium Water Conditioner 16-Ounce Bottle
- API STRESS COAT Aquarium Water Conditioner 16-Ounce Bottle

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-15*