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Liquid Carbon (CO2)


Liquid Carbon (liquid CO2) helps plants to grow healthily with good colouration. When plants are growing well this can outcompete algae in tropical aquariums. It is also useful to fight black beard and hair algae. Add Aquadip Liquid Carbon (CO2) every day for best results.

Choose if you would like a dosing cap or not (there is no charge for dosing caps. However, as they are plastic, please re-use if you already have one). Bottle pumps are available instead of dosing caps if you prefer.

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Liquid Carbon (CO2) by Aquadip is a powerful, readily available carbon source. It is an easy alternative to the traditional CO2 injection systems used in tropical freshwater aquariums.

Carbon is essential for plant growth because without it plants will become weak, start to loose their colour and often their leaves end up covered in algae. If your plants are not growing well, starting to turn a yellow colour or struggling to compete with algae it may be a sign that there’s not enough CO2 in the tank for them.

Dosing Liquid Carbon (CO2)

Dosing Liquid Carbon will boost your aquatic plants, they will be able to grow more easily and their colours will be more intense. This product is best used in combination with a quality liquid plant food like Plant Food+ or Ferropol. It’s also important to have good filtration and aquarium lighting for plant health.

  • In a normal planted tank add 2ml per 100 litres once a day
  • Double the dosage for heavily planted tanks
  • Liquid Carbon is safe for fish, shrimps and crustaceans
  • Suitable for freshwater only
  • Do not overdose
  • 100ml will treat up to 500 litres
  • 250ml will tread up to 1250 litres
  • 500ml will treat up to 25000 litres
  • 1000ml will treat up to 50000 litres

Reducing plastic waste where possible

A 30ml dosing cap is available on request with this product free of charge. We can provide on cap with each bottle purchased. We do not include cups by default to reduce plastic waste. There are many other ways to measure out dechlorinator. For example, a standard teaspoon is 5ml.

Bottle pump available

Another way to easily dose is by using a reusable bottle pump. The dosing pump fits onto every sized bottle of the Aquadip Aquarium Care product range. The riser pipe can be cut once to the size that you need.
Each press of the pump supplies 2ml of liquid and you can dose straight into an area of high flow directly to your aquarium. Click here to add one to your order.

Top tips for plant care:

Plants also like a reasonable water flow. Regularly check to make sure that your aquarium filters are working properly. If it has been a long time since they were last cleaned, you may find the flow slowing.

You can also add flow to the aquarium by using a flow pump such as Reef Flow 2.0 or similar.

When you get new aquarium plants, gently remove them from their bunch or pot. If there is wool around the roots, gently remove this too. Then plant the roots into the substrate. A lot of plants will benefit from an enriched substrate like JBL Manado.

Plants also feed through their leaves. Liquid foods (as mentioned above) plus good aquarium lighting are also necessary to keep your aquatic plants thriving!


Additional information


1000ml, 500ml, 250ml, 100ml

Dosing Cap

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