---
product_id: 17805358
title: "Seachem Acid Buffer 600gram"
brand: "seachem"
price: "€ 45.85"
currency: EUR
in_stock: true
reviews_count: 13
category: "Seachem"
url: https://www.desertcart.nl/products/17805358-seachem-acid-buffer-600gram
store_origin: NL
region: Netherlands
---

# phosphate-free for algae control converts KH to CO2 pH control 5.0–8.0 Seachem Acid Buffer 600gram

**Brand:** seachem
**Price:** € 45.85
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your planted aquarium game with precision pH control and algae-free clarity!

## Quick Answers

- **What is this?** Seachem Acid Buffer 600gram by seachem
- **How much does it cost?** € 45.85 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/17805358-seachem-acid-buffer-600gram)

## Best For

- seachem enthusiasts

## Why This Product

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

## Key Features

- • **CO2 Boosting Buffer:** Transforms carbonate hardness (KH) into bioavailable CO2, enhancing plant growth naturally.
- • **Long-Lasting Supply:** 600 grams of buffer treats multiple water changes, delivering months of stable water chemistry.
- • **Synergistic Pairing:** Designed to work seamlessly with Seachem Alkaline Buffer for balanced, stable aquatic environments.
- • **Precision pH Mastery:** Effortlessly adjust aquarium pH between 5.0 and 8.0 for optimal plant and fish health.
- • **Algae-Free Aquascaping:** Phosphate-free formula prevents unwanted algae blooms, keeping your planted tank pristine.

## Overview

Seachem Acid Buffer 600g is a phosphate-free pH buffer designed for planted aquariums and hard water. It precisely lowers pH between 5.0 and 8.0 while converting carbonate alkalinity into available CO2, promoting healthy plant growth without triggering algae blooms. Ideal for maintaining stable water chemistry, it pairs perfectly with Seachem Alkaline Buffer for balanced aquatic ecosystems.

## Description

Acid Buffer™ is a non–phosphate buffer to lower pH and buffer with Alkaline Buffer™. Both buffers are designed for the planted aquarium or for very hard water where phosphate buffers may pose an algae or cloudiness problem. Acid Buffer™ lowers pH and buffers between 6.0 and 8.0 when used with Alkaline Buffer™. As Acid Buffer™ lowers pH it converts carbonate alkalinity (KH) into available CO2. What is the difference between Acid Buffer™ and Acid Regulator™ A: The difference is that Acid Buffer™ is a straight acid source and Acid Regulator™ is a phosphate based buffering system. Acid Regulator™ has a greater ability to maintain a pH as were a straight acid source can have a slight pH drift. When you are trying to avoid any additional phosphates I would go with the Acid Buffer™ and Alkaline Buffer® products but if that is not an issue, then the Acid Regulator™ will maintain a more constant pH.

Review: Works great! - Just awesome. My water comes out with 0 dKH and 8.2 PH and I inject CO2. With such soft water, my PH would likely be very unstable and crash once my CO2 kicks in. I use this in conjunction with Alkaline Buffer with every water change to lower the PH to 7-7.2 and raise my KH up to 6 to 8. I recommend these over other products because these are not phosphate based. That is especially important if you have a planted tank with lots of light because otherwise you'll trigger an algae bloom very quickly. Given that you only need up to half a tablespoon at most to treat a standard 3-5 gallon bucket when changing water, one of these 600 gram containers will last you several months to a year depending on how big your aquarium is and how often you change your water. It's definitely worth the purchase if you have tricky water like mine.
Review: Works well. Takes a week or more to arrive - Lid was cracked and powdered acid spilled. Other than that it works. 47 rules!!

## Features

- Adjusts pH to 5.0—8.0
- Designed for use in planted aquariums
- Converts carbonate alkalinity (KH) into available CO2
- Contains no phosphate

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0006JLX88 |
| ASIN  | B0006JLX88 |
| Age Range Description | all stages |
| Best Sellers Rank | #60,322 in Pet Supplies ( See Top 100 in Pet Supplies ) #586 in Aquarium Water Treatments |
| Brand Name | Seachem |
| Color | white |
| Customer Reviews | 4.7 4.7 out of 5 stars (395) |
| Date First Available | June 15, 2004 |
| Date First Available  | June 15, 2004 |
| Directions | To lower pH, use 1/4 teaspoon (2g) for every 80 L (20 US gallons) daily until desired pH is reached (this dose lowers alkalinity by about 0.2 meq/L (0.6 dKH)). Larger doses may be required in very hard (KH) or alkaline waters. For precise dosing, use the Seachem Digital Spoon Scale. |
| Included Components | all |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 6.4 x 2.9 x 2.9 inches |
| Item Package Dimensions L x W x H | 6.26 x 2.91 x 2.8 inches |
| Item Weight | 0.6 Kilograms |
| Item model number | 243 |
| Item model number  | 243 |
| Manufacturer | Seachem Laboratories, Inc. |
| Manufacturer  | Seachem Laboratories, Inc. |
| Material | Cotton |
| Model Name | Acid Buffer 600g |
| Number of Items | 1 |
| Product Dimensions  | 6.4 x 2.9 x 2.9 inches; 1.32 Pounds |
| Size | 600 grams |
| Specific Uses for Product | habitat |
| Target Audience Keyword | fish, house-cats |

## Product Details

- **Brand:** Seachem
- **Item Form:** Powder
- **Item Weight:** 0.6 Kilograms
- **Liquid Volume:** 600 Milliliters
- **Manufacturer:** Seachem Laboratories, Inc.

## Images

![Seachem Acid Buffer 600gram - Image 1](https://m.media-amazon.com/images/I/71lx5U3WLaL.jpg)

## Questions & Answers

**Q: will this lower my ridiculously high KH w/o the need to keep dosing my tank, but just the replacement water during water changes?**
A: If you look on the container it states it converts KH into CO2.
Your KH is what helps keep your PH from lowering, so in order to lower your PH you will need to lower your KH first. This acid buffer is mostly used in tanks with plants. That way they can remove the excess C02 from the water.
Word of caution: if you don’t have plants, and use too much then you'll have a lot of CO2 which will cause a quick change in PH and will more than likely kill off any fish.

An easier but slower way to lower your KH is by getting distilled water, using a reverse osmosis system or a deionization filter and doing water changes that way. It will take more time but works well as there will be no GH or KH in that water which means lower PH. Keep in mind if you are using tap water, the water may be high in KH and it won't help to replace with that.

**Q: Does this work on soft water?**
A: This changes the PH, it doesn't matter if the water is hard or soft.

**Q: What is the actual chemical in this product?**
A: sodium bisulfate

**Q: What acid is used in this product?**
A: sodium bisulfate

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great!
*by A***S on July 24, 2018*

Just awesome. My water comes out with 0 dKH and 8.2 PH and I inject CO2. With such soft water, my PH would likely be very unstable and crash once my CO2 kicks in. I use this in conjunction with Alkaline Buffer with every water change to lower the PH to 7-7.2 and raise my KH up to 6 to 8. I recommend these over other products because these are not phosphate based. That is especially important if you have a planted tank with lots of light because otherwise you'll trigger an algae bloom very quickly. Given that you only need up to half a tablespoon at most to treat a standard 3-5 gallon bucket when changing water, one of these 600 gram containers will last you several months to a year depending on how big your aquarium is and how often you change your water. It's definitely worth the purchase if you have tricky water like mine.

### ⭐⭐⭐⭐⭐ Works well. Takes a week or more to arrive
*by W***R on November 6, 2024*

Lid was cracked and powdered acid spilled. Other than that it works. 47 rules!!

### ⭐⭐⭐⭐⭐ Great product
*by S***. on March 8, 2025*

Fast service

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-20*