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What Is The Best Liquid Co2 For Aquarium Plants

May 14, 2022 by Albert Reid Leave a Comment

With so many options available in the market choosing the best liquid co2 for aquarium plants can be tricky for normal customers. Consumers can get overwhelmed by the huge marketplace and end in a place by choosing a wrong product that will not serve its purpose perfectly.
The purpose of this review is to avoid misunderstanding and help the customer with a shortlist of the most popular products of the marketplace by analyzing the features, functions, specifications, customers rating, and reviews.
This review section will help you with the selected list of the most favored and trended items of the marketplace where you can easily check the reviews from the actual customers.

# Preview Product Price
1 API Co2 Booster Freshwater Aquarium Plant Treatment 16 oz Bottle $13.29
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2 API Co2 Booster Freshwater Aquarium Plant Treatment 8 oz Bottle $12.61
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3 Api CO2 Booster Liquid Carbon 473ml by API $16.99
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4 Seachem Flourish Excel Bioavailable Carbon – Organic Carbon Source for Aquatic Plants 500 ml $17.12
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5 Seachem Flourish Excel Bioavailable Carbon – Organic Carbon Source for Aquatic Plants 2L $36.14
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6 Seachem Flourish Freshwater Plant Supplement – Aquarium Element and Nutrient Blend 250 ml $6.59
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7 VEVOR CO2 Burner, 2 Brass Burner CO2 Generator for Plant, Liquid Propane LP Carbon Dioxide Generator, 5588 BTU/Hr, Built-In Electronic Ignition, for Greenhouse Green Tent Hydroponic Room Grow Room $215.99
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8 MagTool 4L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit with Regulator and Needle Valve for 600-800g Raw Material $159.90
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9 Seachem Flourish Tabs Growth Supplement – Aquatic Plant Stimulant 40 ct $23.97
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10 Clscea G700S DIY CO2 Cylinder Generator Set with Solenoid Valve Complete CO2 System Kit for Aquarium Plants, 304 Stainless Steel $139.99
Buy On Amazon

Top 10 Best Liquid Co2 For Aquarium Plants

liquid co2 for aquarium plants

Here are the top liquid co2 for aquarium plants we picked, check their features.

1. API Co2 Booster Freshwater Aquarium Plant Treatment 16 oz Bottle



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

2. API Co2 Booster Freshwater Aquarium Plant Treatment 8 oz Bottle



  • Adds essential carbon in a form plants can absorb from the water
  • Contains one (1) API CO2 BOOSTER Freshwater Aquarium Plant Treatment 8-Ounce Bottle
  • Can be used alone or with a CO2 system without altering aquarium pH levels
  • Promotes plant growth in freshwater aquariums
  • Use daily in order to ensure lush, vibrant aquarium plants

3. Api CO2 Booster Liquid Carbon 473ml by API



  • Properly caring for aquarium plants
  • Pack of 1
  • Safe for use with tropical fish
  • Develops strong plant roots
  • A vibrant, healthy planted aquarium

4. Seachem Flourish Excel Bioavailable Carbon – Organic Carbon Source for Aquatic Plants 500 ml



  • TREATMENT: On initial use or after a major (> 40%) water change, use 1 capful of Flourish Excel (5 mL) for every 40 L (10 US gallons). Thereafter, use 1 capful for every 200 L (50 US gallons) daily or every other day. For smaller dosing please note that each cap thread is approximately 1 mL.
  • PHOTOSYNTHESIS: Plants must produce longer chain carbon compounds (photosynthetic intermediates). By dosing with Flourish Excel you bypass the involvement of chain carbon compounds, and introduce the already finished, structurally similar compounds.
  • IRON PRODUCTION: Flourish Excel also possesses iron reducing properties, thus promoting the ferrous state of iron (Fe+2), which is more easily utilized by plants than ferric iron (Fe+3).
  • SAFETY: Flourish Excel is completely safe for fish, however if you have Anacharis in an aquarium in which you are dosing Flourish Excel, then it is recommended to use it every other day rather than daily.
  • CARBON PRODUCTION: All plants require a source of carbon, and Flourish Excel is a great and convenient source of bioavailable organic carbon.

5. Seachem Flourish Excel Bioavailable Carbon – Organic Carbon Source for Aquatic Plants 2L



  • SAFETY: Flourish Excel is completely safe for fish, however, if you have Anacharis in an aquarium in which you are dosing Flourish Excel, then it is recommended to use it every other day rather than daily.
  • IRON PRODUCTION: Flourish Excel also possesses iron reducing properties, thus promoting the ferrous state of iron (Fe+2), which is more easily utilized by plants than ferric iron (Fe+3).
  • PHOTOSYNTHESIS: Plants must produce longer chain carbon compounds (photosynthetic intermediates). By dosing with Flourish Excel you bypass the involvement of chain carbon compounds and introduce the already finished, structurally similar compounds.
  • CARBON PRODUCTION: All plants require a source of carbon, and Flourish Excel is a great and convenient source of bioavailable organic carbon.
  • TREATMENT: On initial use or after a major (> 40%) water change, use 1 capful of Flourish Excel (5 mL) for every 40 L (10 US gallons). Thereafter, use 1 capful for every 200 L (50 US gallons) daily or every other day. For smaller dosing please note that each cap thread is approximately 1 mL.

6. Seachem Flourish Freshwater Plant Supplement – Aquarium Element and Nutrient Blend 250 ml



  • SAFETY: Seachem Flourish is safe to use for invertebrates such as shrimp, but is designed to be used in conjunction with other macro and micro-nutrient supplements in aquariums only.
  • WATER TREATMENT: For best results, use 1 capful (5 mL) of Flourish for each 250 L (60 US gallons) once or twice a week. For smaller doses, please note that each cap thread is approximately 1 mL. Refrigeration is recommended 3 months after opening.
  • SUPPLEMENT: Seachem Flourish is a comprehensive plant supplement for the natural freshwater aquarium, containing a rich assortment of important micro elements, trace elements and other nutrients.
  • ELEMENTS: In order to benefit your aquatic plants and help your freshwater environment thrive, Seachem Flourish contains calcium, magnesium, iron, and other important elements.
  • SOLUTION COLOR: It is normal for the color of Seachem’s Flourish to vary by batch as the solution color is dependent on the temperature at which the product was blended. This variation in color is of no consequence to the function of Flourish.
  • Packaging May Vary.

7. VEVOR CO2 Burner, 2 Brass Burner CO2 Generator for Plant, Liquid Propane LP Carbon Dioxide Generator, 5588 BTU/Hr, Built-In Electronic Ignition, fo



  • Electronic Ignition Design: Features automatic electronic ignition module, this CO2 generator for plants allows for instant lighting of the burners, eliminating open pilot flames. Plus, the solenoid valve ensures the gas does not leak, providing an operation of both convenience and security.
  • High Combustion Efficiency: Two brass burners, use liquid propane for a combustion reaction, produces plenty of carbon dioxide at a low cost. In addition, high combustion efficiency burners make clean and efficient CO2 delivery for high yield of plants. Plus, the tip-over warning design gives the CO2 generator an additional layer of security.
  • Specific Material for Humid Situation: The galvanized powder-coated shell is specially designed for the hydroponic environment, making the CO2 generator burner not easy to rust. In addition, 304 stainless steel plate can withstand high temperatures, and the copper tube is designed for long-lasting durability.
  • Diverse Application: Used for producing carbon dioxide, this liquid propane CO2 generator enriches carbon dioxide content for vegetable and flower planting in the greenhouse, gives remarkable increases in the yield of plants. Perfect for the greenhouse, green tent, hydroponic area, experimental field, and grow room.
  • High Output CO2 Generator: This CO2 burner uses liquid propane as fuel, effectively producing sufficient carbon dioxide output to meet the maximum growing potential of plants. High output: 5588 BTU/hr, which can meet greenhouse and grow room carbon dioxide demand.

8. MagTool 4L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit with Regulator and Needle Valve for 600-800g Raw Material



  • Safety! The wall of the bottle meets the safety requirement – 1.5mm thick SUS304 stainless steel. It can sustain pressure up to 1137 PSI (80kg/cm2). The built-in safety valve will open automatically when the inside pressure exceeds the safety threshold.
  • Attentions: The required powders to generate CO2 gas are NOT included! You will need citric acid and sodium bicarbonate powders.
  • 4 Liter Capacity. That is 2x larger than the size of our competitors’ CO2 generator systems. Holds 600g-800g of citric acid and sodium bicarbonate, aka baker soda powders.
  • Professional CO2 Kit With All Accessories Needed For A Complete Setup! 4 Liter SUS304 stainless steel bottle / DC mini solenoid / Regulator / Precision needle valve / Bubble counter / CO2 diffuser / CO2-graded tubing / Plastic funnel and measuring cup.
  • 12V DC Instead of AC Power. DC solenoid runs on very low voltage and generates almost no heat. The solenoid is warm to touch and is super quiet. No humming noises.

9. Seachem Flourish Tabs Growth Supplement – Aquatic Plant Stimulant 40 ct



  • GROWTH TREATMENT: Seachem Flourish Tabs are growth stimulating tablets for plant roots which contain essential trace elements, amino acids, and vitamins.
  • NUTRIENTS: When inserted into the gravel, Seachem Flourish Tabs provide direct, time-released fertilization to the plants’ root zone. Nutrients are slowly made available through enzymatic action of the plants’ roots on the tabs.
  • COMPLETE MAINTENANCE: For optimal plant growth, add new Flourish Tabs to the aquarium once every three to four months. Seachem Flourish Tabs will not alter pH, however, in very soft or unbuffered water, they have slightly acidic properties similar to peat moss.
  • VITAMINS: Seachem Flourish Tabs are rich in iron, manganese, magnesium, calcium, potassium, inositol, choline B12, biotin, and other factors that have been determined to be beneficial to aquatic plant roots.
  • TANK USE: Insert one Flourish Tab in the gravel for every 10–15 cm (4–6 in.) radius. A standard 10 gallon aquarium requires 6 tabs. Distribute the tablets evenly throughout the gravel bed, pushing each tablet midway into the gravel bed.

10. Clscea G700S DIY CO2 Cylinder Generator Set with Solenoid Valve Complete CO2 System Kit for Aquarium Plants, 304 Stainless Steel



  • Quality inspection one by one, rather than random inspection! We are serious about quality control and buyer experience! ➤MOST CASES OF LOW PRESSURE AFTER REACTION ARE CAUSED BY OPERATIONAL PROBLEMS. So if there are any questions, suggestions or ideas, please feel free to CONTACT ✉ us.
  • 2.3L capacity and 1.5mm thickened wall cylinder, supporting double reaction materials (400g citric acid + 400g baking soda + 600ml water). Constant pressure output through pressure reducing valve, no need to adjust the needle valve frequently. Handmade at home, easy to replace the raw materials, no need to go to the inflatable station to inflate. Suitable for medium planted tanks less than 90cm/35inch in length.
  • This complete DIY CO2 Kit provides an excellent method of deploying the citric acid / baking soda solution to generate CO2 for plants’ growing in the aquarium. This set contains almost all the necessary accessories, only the reaction raw materials need to be prepared by yourself.
  • The bubble counter is integrated with the solenoid valve and has a built-in check valve. And the solenoid bubble counter is replaceable. The bubble counter with QUICK PLUG CONNECTION can achieve plug and unplug in a second, more convenient and fast to replace the raw materials. 12V DC mini solenoid valve! Waterproof, cool touch, super quiet, no humming noises and energy saving.
  • Corrosion and high pressure resistant 304 stainless steel cylinder with a pressure load of 180kg/cm² (2560 psi). Safer to use. The CO2 regulator is also made of 304 stainless steel, anti-corrosion. (Other regulators on the market are basically aluminum alloy, which is low cost but easily corroded.) Equipped with a safety valve that automatically relieves the pressure when the pressure exceeds the safety value (ca.70kg/cm²; 996psi).

How to Choose the Best liquid co2 for aquarium plants: Buying Guide

When it comes to choosing the right liquid co2 for aquarium plants, you should be assured that you are making the right choice. Understanding about the product before buying it is the most important part. Sometimes with so many options, evaluating the right choice at the right moment can be problematic.
So, check out the buying guide to overcome all the hassle of finding your best solution.

Features of the liquid co2 for aquarium plants

The first thing to check out on any product is the feature. You have to locate the useful features that will come in handy in your needs. Sometimes a product can be filled with tons of features to look good on normal eyes but their features can be worthless in practical use.

So, before choosing the right item you need to evaluate the features from the feature section and the description section to see if you are going to use them or not. If the products come with some of the efficient features, you can undoubtedly choose them.

Check the Specifications

Sometimes, we don’t have enough time to check on the specification section and are quickly drawn to buy a product. While the products we are suggesting here are the best ones according to the users, we still suggest taking a look at the specifications.
The specifications of the liquid co2 for aquarium plants will let you informed about the uses and advantages of using the products. You can then determine if that can fulfill the purpose of your needs.

Yes, there can be a few problems understanding the whole specification section if it is too long. What we suggest is to look for the key features, performance, how much the products going to cost and their after-sale services.

Design of Product

The market is full of wonderful products, and it can be tough to decide which one to choose. However, the first impression you can make of the item is the overall design.
You can check out the material, finish, color, and other visual aspects of the product to get a taste of the manufacturer. If you like the overall design, you can check out other factors before choosing the item.

Seller Rank in the Marketplace

If you buying the products from our shortlisted table, then one thing you can consider is to check the seller rank. A trendy and growing product means it is delivering good performances to most of the customers.
And better trends and growth of selling means better seller rank. And liquid co2 for aquarium plants from a good seller rank will ensure not only good quality of the item but also a better after-sale service and good warranty service if available.

Durability and Stability of the Product

You need to check out the description and reviews section to see how durable and stable the product is. A good product will be durable, will last longer, and will provide stable uses throughout its lifetime.
The liquid co2 for aquarium plants we have suggested have mostly been made in a way to last longer with providing stable performance in uses, but the best thing is to click the item and check out the stability and durability according to your personal need.

User Friendliness and Comfort

No one wants discomfort and critical toughness when using a product. Comfort is one of the most important considerations when choosing the liquid co2 for aquarium plants. Most of the products that are selected in this article are popular which means have better served the most users.
So, we are certain that these products are comfortable and user-friendly enough to satisfy most customers. But you can watch each of the products on our list to see which fulfills your satisfaction the most.

Frequently Asked Questions (FAQs)

What is the Price Range for liquid co2 for aquarium plants?

The item can come with several cost ranges. The price can go up depending on the quality of the items and the ability to last longer periods, functions, specifications, features, and reliability.
The modern marketing trends have left us with little clues on the actual price. Sometimes a product manufactured cheaply can cost a lot more than a quality one. Some manufacturers spend more on marketing than manufacturing creating better reach and less quality.
So, you should compare the price of the products from our review segment to select the best features, quality, and performance of the product in a certain price range.

Why Should You Buy the liquid co2 for aquarium plants?

If you need an item, then understanding the scenario is simple. But if you are not, then think sensibly if the benefits of this product will certainly fulfill your need. Ask yourself, why do you want to have the product.

What we have suggested in our top pick is the best items according to many users. If you have made up your mind, then you can read the reviews of the customers before choosing the right item.

When Should I Buy a New liquid co2 for aquarium plants?

There can always be a question if:
Is it the right time to buy the liquid co2 for aquarium plants, or you should wait for few times to see if the right products have been launched to serve your need?
It is pretty difficult to determine if the products that are actually on the marketplace are the best, or the best items are yet to come. But the suggested products are popular and have very good reviews from a lot of customers.
So, if you need the product right now, wasting any time is not sensible.

Which Type of liquid co2 for aquarium plants is the Best?

There are different types of liquid co2 for aquarium plants in the marketplace. Understand your need first. Which type of this product will be most beneficial to you. You can also go through the product list and see their reviews, pros, cons, and then select the best type of items for now.

Final Thought

I hope our product table, review section, and buying guide will help you determine the right items for your need. If you are looking for the best liquid co2 for aquarium plants then there are multiple options from our product list.
You can go check out the short features of these items from our review to pick one or two to check for further reviews. Click these products and see the reviews of the customers, description of the products, and rating of it to make a final decision for buying it.

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