---
product_id: 397902598
title: "pH Up, 4 OZ"
brand: "api"
price: "NT$558"
currency: TWD
in_stock: true
reviews_count: 6
category: "Api"
url: https://www.desertcart.tw/products/397902598-ph-up-4-oz
store_origin: TW
region: Taiwan
---

# 4 oz concentrated liquid formula BPA-free, eco-conscious packaging Precise pH control ±0.1 pH Up, 4 OZ

**Brand:** api
**Price:** NT$558
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** pH Up, 4 OZ by api
- **How much does it cost?** NT$558 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/397902598-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 & Eco-Friendly:** Protect your fish and the planet with toxin-free, responsibly packaged water treatment.
- • **Safe for All Life Stages:** Formulated to support fish health from fry to adult, ensuring a thriving aquatic environment.
- • **Long-Lasting 4 OZ Concentrate:** More treatment power than typical small droppers—perfect for consistent water care.
- • **Balance Your Aquarium's Ecosystem:** Raise pH levels quickly to maintain optimal alkaline conditions for diverse fish species.
- • **Trusted by Thousands of Aquarists:** 4.5-star rating from over 2,700 reviews—join the community that keeps tanks vibrant and healthy.

## Overview

API pH Up is a 4 oz liquid solution designed to safely raise and stabilize pH levels in freshwater aquariums. Ideal for all fish life stages, it ensures water stays alkaline when pH drops below optimal, supporting healthy aquatic ecosystems. BPA-free and highly rated by thousands of users, it offers reliable, long-lasting water treatment for professional and hobbyist aquarists alike.

## Description

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

Review: Excellent - Excellent and I recommend it
Review: Love the size that should get me longer than the small dripper we all get in the first water treatment kit.

## 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 |
| Batteries Included | No |
| Color | multicolor |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,717) |
| Date First Available | 9 August 2012 |
| Item Form | Liquid |
| Item Weight | 136 g |
| Item model number | 31C |
| Number of Items | 1 |
| Pet Life Stage | All Life Stages |
| Product Dimensions | 3.81 x 3.81 x 13.34 cm; 136.08 g |
| Quantity | 1 |
| Specific Uses | Active |
| Volume | 4 |
| batteries required | No |

## Product Details

- **Brand:** API
- **Item form:** Liquid
- **Item weight:** 136 g
- **Liquid volume:** 4 Fluid Ounces
- **Manufacturer:** API

## Images

![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!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent
*by M***N on 27 January 2024*

Excellent and I recommend it

### ⭐⭐⭐⭐⭐ Review
*by M***R on 12 September 2023*

Love the size that should get me longer than the small dripper we all get in the first water treatment kit.

### ⭐⭐⭐⭐⭐ Review
*by K***E on 12 March 2026*

Works like a charm. Don’t add it to your tank if you’re dealing with an ammonia spike - it’ll make it worse. Only add when your parameters are spot on and balanced.

## 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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**Shop now:** [https://www.desertcart.tw/products/397902598-ph-up-4-oz](https://www.desertcart.tw/products/397902598-ph-up-4-oz)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-23*