Allways a good experience , fast delivery , really well packed .
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Neutro CO₂ - Liquid Carbon for planted aquariums
Liquid carbon supplement — helps plants grow and outcompete algae
- Regular price
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£10.99 - Regular price
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- Sale price
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£10.99
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Description
Neutro CO₂ is a liquid source of carbon for the planted aquarium.
For those of you not familiar with it, carbon is essential for all healthy plant growth and can be provided via gas, or liquid. The liquid form is less potent than gas but still very effective. It won't make your plants pearl (this is when you see O2 bubbles coming from the plant) but it will help them grow. Plants that have access to liquid carbon will do far better than those without.
What happens when plants don't have access to carbon?
Tap water has zero carbon in it so if you're not adding any to the water you can safely assume you have no carbon at all. So if you're not dosing it, plants will not photosynthesize as they should. As a result, they stop growing (or show stunted growth) and can't compete with algae for nutrients and the downward spiral begins. If this carbon deficiency continues, plants inadvertently (out of their control) release sugars and other nutrients which attract algae and it's these sugars and nutrients they so desperately need, but just can't hang onto.
It's a bit like vomiting (sounds gross but true). Without carbon, plants lose energy, nutrients, health and well-being. Their colours disappear. The end result? Algae everywhere.
So you can see why it's actually very important to dose carbon and why we recommend that all plants receive a daily dose because, without it, they will always struggle.
So the sooner you dose liquid carbon the better.
Can I double dose if I have algae?
You can - for short periods but no more than double. It's important to understand that if you do have algae, your tank has an imbalance and this isn't just down to carbon, it's other nutrients versus the amount of light you are pumping in.
Can I spot treat?
It is possible to spot treat plants or wood that have algae growing on them. Simply by using a pipette and extracting some Neutro CO₂, squirt the carbon onto the plant or wood when it is outside of the water. Wait for 10 seconds then put it back into the water. You can also do this when performing a water change (it's easiest that way). But if you leave liquid carbon on for too long you will kill the plant.
DOSAGE: Add 1ml per 50L every day. It doesn't matter what time of day you dose this product, but it does need to be added every 24 hours.
Bottle sizes: Small = 500ml, Medium = 1000ml, Large = 2000ml, XLarge = 4000ml.
This bottle has a cap which measures 10ml. In order to dose you can pour directly into that or use one of our dispensing bottles (which is on the better together promotion on the right hand side of the screen).
Our Delivery Promise To You
We pack every order carefully at our UK facility and dispatch quickly, so your plants and aquarium products reach you in the best possible condition.
Order before 4pm Monday to Friday and we’ll dispatch the same day where possible. Most orders arrive within 1-2 working days.
If something goes wrong in transit, get in touch and we’ll help put it right.




Liquid carbon supplement effective for low-tech planted aquariums. Customers said it promotes healthy plant growth and controls algae, particularly when paired with fertilizer. "Plants have never looked healthier." Many shoppers double-dose successfully. One customer noted initial algae die-off created sediment. Great value alternative to pressurized CO2 systems.
- MY AQUARIUM HAS NEVER LOOKED SO LUSH
- The leaves on my anubias have started to turn a lighter green, and one is flowering
- Completely changed my tank, now all my plants are growing
- 5 stars: 70 (90%)
- 4 stars: 8 (10%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
I've been using Neutro CO₂ along with Neutro T Aquarium Plant Fertiliser daily for a few months now to revive a neglected low-tech tank. It seems to be doing the job - the plants are recovering and the algae issues are hugely improved. I double dose Neutro CO₂ with no problems (although it did create a lot of organic sediment when first using as the algae died off - easily removed with regular syphoning and water changes).
Works well for a low tech tank, low lighting levels and easy plants etc. Tank suffered from black beard algae before using this. Now dose approx 1-2ml daily, plants healthy and no algae. Recommend this alongside fertiliser Neutro T. Thanks guys!
Very impressed ....my plants look great
I've been using this product for a long time now and it works well for me in my low tech setup. I do double dose. Plants are doing well with very little to no algae. Price is good also compared to other brands.
Plants seem healthy
Good product keeps plants looking healthy easy to use
This has definitely become an important part of my routine adding alongside the neutro t fertiliser.plants so much stronger even with the fish still nibbling at them so happy all round.
Brilliant stuff from a very good company
Lot less hassle than pressurised co2 and works out cheaper.
Brilliant stuff.
Only recently started to use this product, but I am starting to see an improvement in my plants already. Would definitely recommend it
Completely changed my tank,now all my plants are growing.This has made such a difference, great stuff.
Ace product, does what I want it to ,wouldn't be without it.
I started using this along with my CO2 and since then the plants have gone mental, I wish I could show you a photo of it now because words don’t do it justice. Would highly recommend using this.
Not sure what effect this is having as this is my first planted tank. Plants are doing well and no algae to speak of yet so will continue using.
Bought on recommendation with the fertiliser. Am looking forward to a great aquarium with all the products I’ve bought. Will keep up the correct dosage and water changes, have binned the carbon in my filter. For the first time in 7 years I feel like I’m doing something right! Thank you Aqua Essentials, you are definitely the only place I will use for my aquarium needs.
my recently installed plants showed little sign of growth, after purchasing this product and its accompanying fertilizer, health and growth of plants has been phenomenal
Since using this product, my plants look more healthy now than when I was using pressurised co2 bottle, also I had a lot of BBA algae, but since using this it's all gone and my Nitrate levels have also dropped to a suitable level. I would recommend using this product.
If you cant be bothered with CO2 gas ,this is the next best thing and cheaper.
Been using this in combination with Neutro T fertiliser. I have eased off it's application atm as there seems to be an increase in algae bloom.
Have only been adding this to my new set up for fancy goldfish for about 2-3 weeks now and together with the neutro fertiliser. I wanted to get the plants settled in the tank before adding any fish and this has worked perfectly! The plants have visibly started to grow extremely well and we have a running joke about one of the bulbs that is "walking" around the tank! The leaves have grown so well that it can't anchor, the roots are growing but much slower, the leaves are like sails! Every day they are longer and the plant is in a different place!
very impressed with the product, does what it say,s
I use this as an additional source of CO2 with Neutro + and pressurized CO2.
this is a good product when combind with a fertiliser
Product was delivered quickly and well packed with recycled materials. In use it is very economical and seems to help with the plants health, I,am using this in conjunction with Neutro T Aquarium Fertiliser which was delivered in the same parcel. This is also very economic to use and is helping with my plant growth ,would not hesitate to to recommend both products.
Very cost effective way of adding co2
exacty wat i orderd
VERY PLEASED
Brilliant product. The plants grow really well and look healthy - and not using injected CO2 . Excellent value for money.
good product keeps my plants green and healthy . also keeps algy at bay. great for cleaning tank decorations
used this before is as good as advertised.
VERY PLEASED, BOUGHT ON AQUA'S RECOMMENDATION, PLANTS ARE GROWING WELL,
Is this ok to use with shrimp
Yes

