---
product_id: 1667200
title: "API Co2 Booster Freshwater Aquarium Plant Treatment 16 oz Bottle, Brown"
brand: "api"
price: "€ 39.48"
currency: EUR
in_stock: true
reviews_count: 13
category: "Api"
url: https://www.desertcart.sk/products/1667200-api-co2-booster-freshwater-aquarium-plant-treatment-16-oz-bottle
store_origin: SK
region: Slovakia
---

# Boosts plant growth daily Liquid carbon for easy absorption No pH alteration API Co2 Booster Freshwater Aquarium Plant Treatment 16 oz Bottle, Brown

**Brand:** api
**Price:** € 39.48
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your aquarium’s green game—because your plants deserve VIP treatment!

## Quick Answers

- **What is this?** API Co2 Booster Freshwater Aquarium Plant Treatment 16 oz Bottle, Brown by api
- **How much does it cost?** € 39.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/1667200-api-co2-booster-freshwater-aquarium-plant-treatment-16-oz-bottle)

## 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

- • **Dual Carbon Power:** Delivers both CO2 and organic carbon compounds for superior photosynthesis
- • **Effortless Dosing:** Precision dosing cap ensures perfect daily application for up to 50 gallons
- • **Fish-Friendly Formula:** Safe for all freshwater fish species, maintaining a balanced ecosystem
- • **Seamless Compatibility:** Works solo or alongside CO2 systems without disrupting aquarium chemistry
- • **Vibrant Growth, No Hassle:** Promotes lush, offshoot-producing freshwater plants with daily use

## Overview

API CO2 BOOSTER is a 16 oz liquid carbon treatment designed to supercharge freshwater aquarium plant growth by supplying absorbable CO2 and organic carbon compounds. Safe for fish and stable for aquarium pH, it can be used alone or with CO2 systems to maintain vibrant, healthy aquatic plants with daily dosing.

## Description

API CO2 BOOSTER Freshwater Aquarium Plant Treatment promotes vibrant, healthy aquarium plants with easy-to-use liquid carbon, which is a necessary element used by aquarium plants for photosynthesis. API CO2 BOOSTER Freshwater Aquarium Plant Treatment supplies a concentrated source of carbon in two forms: CO2, as well as simple, organic carbon compounds. This liquid treatment supplies simple carbon compounds and slowly releases CO2 that plants can absorb through the water. May be used alone or with a CO2 system. API CO2 BOOSTER Freshwater Aquarium Plant Treatment is safe for use with freshwater fish and will not alter pH levels in aquariums. Use with API LEAF ZONE and API ROOT TABS Plant Fertilizer for complete plant care. With API Aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For over 50 years, API has been creating innovative, research-driven solutions that make it easier to care for your fish and aquarium. API Aquarium Treatment Supplies are designed to work in conjunction with each other to provide best results promote healthy organism growth and help fish conditions such as ich and fin rot. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. With API, you can spend more time admiring your fish, and less time scrubbing your tank. Make sure to use all products as directed in order to ensure the best results.

Review: Daily use in Planted tanks. - Using in a freshwater planted tank, our plants have never looked better. The plants are producing off shoots and the fish are doing fantastic. We use this CO2 daily on our fish aquariums!! When delivered cold The plastic did crack due to me dropping the bottle. I was able to save the contents of the bottle in the last bottle I bought meaning I buy this often. The size of the bottle is 8 ounces, fits under the tanks on the shelves well.
Review: Great product and cheaper on desertcart rather than in-store. - Easy to use works great dosn't hurt your fish. Dosnt affect water parlements.A very large bottle should last for a long time

## Features

- Contains one (1) API CO2 BOOSTER Freshwater Aquarium Plant Treatment 16-Ounce Bottle
- Promotes plant growth in freshwater aquariums
- Adds essential carbon in a form plants can absorb from the water
- Can be used alone or with a CO2 system without altering aquarium pH levels
- Use daily in order to ensure lush, vibrant aquarium plants

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004GY9ZYI |
| ASIN  | B004GY9ZYI |
| Best Sellers Rank | #7,452 in Pet Supplies ( See Top 100 in Pet Supplies ) #52 in Aquarium Water Treatments |
| Brand Name | API |
| Color | Brown |
| Country of Origin | United States |
| Customer Reviews | 4.6 4.6 out of 5 stars (4,864) |
| Date First Available | December 21, 2010 |
| Date First Available  | December 21, 2010 |
| Department | Unisex-Adult |
| Department  | Unisex-Adult |
| Directions | Use the API Dosing Cap on Bottle. Add 1 ml for 10 U.S. gallons (38 L) or 5 ml for 50 U.S. gallons (190 L). Dose once a day. |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 2 x 2 x 8 inches |
| Item Package Dimensions L x W x H | 8.46 x 2.4 x 2.32 inches |
| Item Weight | 1 Pounds |
| Item model number | 579E |
| Item model number  | 579E |
| Manufacturer | Mars Fishcare |
| Manufacturer  | Mars Fishcare |
| Material | Plastic |
| Model Name | CO2 BOOSTER 16 OZ |
| Product Dimensions  | 2 x 2 x 8 inches; 1 Pounds |
| Size | 16 oz |
| Style | Aquarium Treatment |
| Target Audience Keyword | fish, fish;algae-eaters; betta-fish; bottom-feeder-fish; cichlid-fish; goldfish; invertebrate-fish; mollusks; octopuses; rays; sharks; snails |

## Product Details

- **Brand:** API
- **Item Form:** Liquid
- **Item Weight:** 1 Pounds
- **Liquid Volume:** 16 Fluid Ounces
- **Manufacturer:** Mars Fishcare

## Images

![API Co2 Booster Freshwater Aquarium Plant Treatment 16 oz Bottle, Brown - Image 1](https://m.media-amazon.com/images/I/51h8OP2BxmL.jpg)

## Available Options

This product comes in different **Color, Size, Style** options.

## Questions & Answers

**Q: would anyone recommend using only API leaf zone with the c02 booster?**
A: CO2 Booster main function is to control algae. The main ingredient is glutaraldehyde which is active algaecide, Leaf zone is a liquid fertilizer with iron and potassium . So yes they can be used together  to help your plants grow. There are a few other liquid ferts out there that are more complete and a better value for long term use. Dry ferts have a much better cost advantage long term, but liquid is quick and easier. I have had great success  using CO2 booster with algae control and nice plant growth when use with another liquid fert, before changing over to the other supplements. So I would recommend, but I would also look up other option to keep cost down and provide the best combo of ferts and carbon supplement out there.

**Q: Api co2 booster vs seachem excel , what do you guys think. which is better and gives better results on plants. thx**
A: Neither really help your plants grow, the active ingredient glutaraldehyde is used to control algae. Seachem Flourish and API Leaf Zone are ferts that help your plants grow. In my experience they have both controlled algae well. Using booster and excel you have to be careful dosing as they can cause melt of val, sag and some sword and other delicate plants when dosing full strength.

**Q: Can I use this in soil?**
A: Lots of unhelpful answers here. Yes, you can use it in a soil-based aquarium.

**Q: What is the difference between this and Seachem Flourish Excel? They seem like same products.**
A: They are very similar, the only difference may be the percentage of glutaraldehyde (and the pricing), which is the main ingredient of both which is how they control algae. There are much better options out there for the price or either. The MSDS sheets would show the actual percentage of each ingredient in the product. They are water down to keep them somewhat safe to use.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Daily use in Planted tanks.
*by K***R on November 6, 2025*

Using in a freshwater planted tank, our plants have never looked better. The plants are producing off shoots and the fish are doing fantastic. We use this CO2 daily on our fish aquariums!! When delivered cold The plastic did crack due to me dropping the bottle. I was able to save the contents of the bottle in the last bottle I bought meaning I buy this often. The size of the bottle is 8 ounces, fits under the tanks on the shelves well.

### ⭐⭐⭐⭐⭐ Great product and cheaper on Amazon rather than in-store.
*by C***1 on January 13, 2026*

Easy to use works great dosn't hurt your fish. Dosnt affect water parlements.A very large bottle should last for a long time

### ⭐⭐⭐⭐⭐ This stuff really works
*by G***E on November 4, 2025*

This booster definitely works well for aquarium plants. It's not so good for snails and shrimp. If I put slightly more than the recommended dosage it kills off pest snails and my Nerite snails and Ghost shrimp! So follow the dosage instructions. The plants do very well.

## Frequently Bought Together

- API Co2 Booster Freshwater Aquarium Plant Treatment 16 oz Bottle, Brown
- API LEAF ZONE Freshwater Aquarium Plant Fertilizer 18-Ounce Bottle White
- API ROOT TABS Freshwater Aquarium Plant Fertilizer 0.4-Ounce 10-Count Box

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-25*