CO2 Supermarket Arvostelua 

Ideal co2 system package, arrived quickly, easy and detailed set up instructions, had a little issue with the supplied diffuser but the customer service was great and it was quickly resolved. Would highly recommend and would definitely buy future co2 items from here again.

I have CO2 previously and received good service.
This time was no different with a very quick replacement being given for a defective item.
Reported problem and received the replacement within 3days.
Impressed

Always quick to respond to any queries.

What a great CO2 system I’ve purchased, absolutely fantastic, no more DIY CO2 for me, only wished I’d bought it years ago, I’m already seeing the benefits to my plants, I’ve got it on a timer and it’s just great, and the communication was so helpful to me in choosing the right system for my tank, so thank you CO2 Supermarket. 👍

Fast delivery and really pleased with my c02 nano kit
I already have the standard kit on my large aquarium & the nano kit is great for my smaller aquarium

Great valve for high quality equipment.
Fast and reliable delivery.

First time user of co2 so a little nervous.
Great company to deal with, super helpful advice before and after my purchase, speedy reply and super fast delivery.
Equipment is quality, very happy with my purchase.
I totally recommend this company and will continue to use them in the future.
Thank you.

Great products, fast service and great prompt online advice from a real person who knows the products and applications really well.

What a fantastic company, carnt believe how fast my item came , ordered at 1600 and still got the item by dinner time next day definitely recommend

Excellent service.
Ordered the Complete Dual Stage Aquarium CO2 System Kit on the Friday which arrived the following Monday.
I was amazed by the quality of this equipment.
It was very easy to set up and has worked flawlessly, giving complete piece of mind that my fish are safe and my plants are healthy.
Many thanks to CO2 Supermarket for the excellent guides and service

Good quality product and excellent service.

high quality stuff, good prices and same day support, what more can you ask for !

I bought a co2 kit for my aquarium about 18 months ago that has worked great since but recently developed a leak. I messaged them for some help trying to workout where it may be coming from and to source the required seal. I got a really quick response with tips to check which worked perfectly and resolved my leak with no parts required. Great product originally but even better was the customer service a long way down the line. Defo recommend this company.

Excellent support. It turned out that connecting a CO2 tank to a soda water dispenser has several stumbling blocks for someone unfamiliar with doing this. Martin was very helpful and responsive. For people like me, well worth buying from him than cheaper sources offering no support.

Bought a few items from here over the years. Good quality, great service.
Had a slight issue due to user error contacted them and got a prompt reply explaining how to rectify the problem.

I recently started a new heavily planted aquarium (approx 250L volume) and while researching some of the equipment needed to sustain healthy plant growth I came across artificial CO2 injection. It wasn’t something I’d used before on low tech setups but I was interested to try it this time.

While looking at options I had a few requirements. Firstly, since the setup sits in a prominent location I have tried to minimise visible equipment so I wanted an inline diffuser. Secondly, I don’t have easy access to a gas merchant so wanted to use a more available source like welding or sodastream bottles. CO2 Supermarket offered a package that included all of these as options which appealed to me more than going to many retailers whose products may not be compatible. Judging by reviews they also seemed reputable which given the risks associated with high pressure systems was important to me.

With a rough idea of the equipment needed I did have a few questions on specific items. I reached out using the contact form with my requirements and a list of questions, Martin was quick to respond with comprehensive answers to my queries. He didn’t choose to take my query as a marketing opportunity and provided honest suggestions that were often cheaper than the original options I had been looking at while remaining suitable for my setup.

Being confident in what I wanted to order I purchased the single stage package with the sodastream adapter and bazooka inline atomiser. Alongside this I also ordered some scissors and tweezers as the prices were reasonable though these have no relation to the CO2 system. Everything was dispatched very quickly with Royal Mail Special Delivery 1pm which was included in the purchase price. I always appreciate companies using more reliable delivery companies and/or services, a cheaper option could have been used but they didn’t which again shows an excellent level of care. Everything was very well packaged with dense foam and thick cardboard so arrived in immaculate condition.

Once everything arrived, setup was very simple with the videos provided which were included in an email sent after purchase but can also be found on their website. I did have a few points to clarify and again Martin was quick to respond and very helpful.

At the time of writing I’ve been using the system for about one and a half weeks. I have made a few adjustments like adding a second check valve and refilling the water in the bubble counter but overall the system has been working extremely well. The sodastream adapter was very easy to use and the entire unit sits neatly inside my aquarium cabinet with the diffuser on my filter outflow and solanoid connected to a timer plug. The impact on my plants is clear, my Rotala have developed thick submerged leaves and needed trimming twice already. Other plants have also been doing very well despite how new the tank still is.

Overall I am very happy with my purchase. At every stage, support was fast and comprehensive no matter the query. I would strongly recommend CO2 supermarket to anyone interested in either setting up a new aquarium with CO2 injection or adding it to an existing setup.

Thx
Seems good product , quick delivery
Not bad price
Good info regarding fitting and using

Very friendly and helpful support for someone who isn't all that handy with new equipment. The equipment arrived whole and safe in Sweden. No problem installing it except for some slight technical issues on my part. Thus the extra star for such a welcoming support from Martin.

Prompt delivery. Securely packaged.

Had my planted aquarium for nearly 3 years now and I've had very good success. Although lately I have noticed my plants struggling a bit. I was determined to stay low tech, no CO2 but I finally changed my mind and thought I would go for it! I sent off an email asking a few questions about which kit to go for etc. I'm totally new to the whole CO2 set up so I felt clueless. I got helpful replies to all my questions, even an after sales question I had. I set the kit up and it's working perfectly and my drop checker is constant green. So I'm very happy with the set up. Everything was packed extremely well and you can tell it's very good quality. I got the advanced disposable cylinder adapter as it's so handy being able to get the cylinders from Toolstation just down the road. It was good having worded instructions and YouTube video instructions too.

10 out of 10 from me! :)