CO2 systems bestseller: Again and again the question arises as to whether one should CO2 plant or should you rather buy a bio CO2 system. The price usually decides. Today we want to present the best and most popular CO2 systems from our point of view. Of course, there are always new models from manufacturers like JBL, Sera, Aqua Noa, Dennerle or Dupla. What you should consider before you decide on a specific model, we have you here already summarized in detail. There is also a calculation tool for the optimal CO2 requirement in the aquarium. After all, you have to know what your needs are.
Once you have decided on a system and bought it, for many there is still the hurdle of finding the right one Setting in addition. There is one for that too relevant advice from us. So you should find everything you need to know about CO2 systems in a compact form. Now let's introduce the best investments.
Dennerle 3008 Bio 60 complete set
For just around 20 euros (currently even on offer and especially reduced in price) you can get a CO2 system from Dennerle, which should be enough for an aquarium with up to 60 liters. This plant is operated with the system of BIO Co2 generation. In addition to the storage depot for CO2 generation, the set also includes the gel and the starter capsule. There is also a micro flipper, which guides the bubbles into the aquarium. A bubble counter and a CO2 hose, which should be made of special material, are also included in the set.
With the Dennerle Bio Co2 Control Gel, Co30 is constantly produced for up to 2 days before it has to be replaced again. Up to 300.000 bubbles are to be produced. In addition, you can of course also buy the Dennerle 3005 Bio Co2 storage depot value pack, so that you have CO2 for quite a long time. In addition to the price-performance ratio, the majority of customers are also quite satisfied. A result in terms of great plant growth should be seen fairly quickly.
- Fully automatic CO2 production and addition
- Ideal for beginners or to try out
- Plants grow much better, are greener, stronger and more vital
- Constantly produces CO30 for over 2 days
- CO2 amount adjustable by temperature
- 2x CO2 storage depot with CO2 Control Gel and starter capsule
- Uniform CO2 production through CO2 Control Gel
- Supply for more than 1 month constant CO2 - fertilization.
- DENNERLE Bio-CO2 is therefore ideal for all CO2 beginners
- Suitable for aquariums up to 120 liters.
JBL ProFlora u504 CO2 fertilizer system complete set
If you want to do without a bio CO2 system and go straight to a large system, you should get the JBL ProFlora u504 CO2 fertilizer system complete set
take a closer look. Of course, you have to dig a little deeper into your pocket here, because the system currently costs around 100 euros. With this it is also possible to supply aquariums with a capacity of up to 400 liters with Co2 and thus create beautiful plant growth. Of course, this system can be used from just a few liters. Here only the number of bubbles and the flipper have to be adjusted accordingly. Operation in several aquariums would also be possible.
We found it particularly good that not only a bubble counter is included, but also a 500 g CO2 compressed gas bottle. This can of course also be exchanged and enlarged as desired. We recommend 2 kg bottles here. The complete system with the pressure reducer is also included, as well as the 3 meter hose and a diffuser. Here, too, the price-performance ratio is quite good.
Sera 08060 flore CO2 fertilizer system
Let's now come to a product from Sera, because there are a lot of different CO2 systems here too. This system can be booked at a price of around 160 euros and is therefore a little more expensive. Nevertheless, it is worth taking a closer look at the product. Let's get to the content of what is included in this set. In addition to a compressed gas bottle with 450g Co2, which, compared to the JBL system presented above, also has a protective bar (it can also be attached to the wall), a professional pressure reducer is also included, which consists of two manometers. This means that a larger bottle can also be operated. The Sera flore CO2 pressure diffuser is also included and also a 5 meter hose. Another plus compared to the JBL system. In addition, you also have an endurance test with you, so that you can permanently monitor and measure the CO2. If you work with disposable CO2 bottles, you also have a suitable adapter with you so that these bottles can also be connected. Fertilizer is also included in the set.
Sera also recommends the seramic pH controller to use. This would allow fully automatic control of the Co2 content via the PH value. However, this is not included in the set and must be purchased separately. Here again around 260 euros would be necessary.
Customers are extremely satisfied with this set from Sera. This set is very useful for aquariums with a capacity of up to 300 liters.
- Fertilizer system with complete accessories
- for a secure CO2 supply
- with adapter for CO2 disposable bottles
- Optimum plant growth through high quality CO2 equipment
- Precision pressure reducer made in Germany
- Which components are included in the scope of delivery of the product: A fertilizer system with all the accessories for a safe supply of CO2
- Optimum plant growth through high quality CO2 equipment
- with solenoid valve & pH measuring electrode
- also for the operation of calcium reactors and dosing pumps
- the seramic pH controller regulates independently and reliably
- it regulates a connected CO2 fertilizer system according to the set specifications
Aqua NOA CO2 system Advanced Style 2000
Now we come to a rather unknown manufacturer. With the Aqua NOA CO2 system Advanced Style 2000, which is available for around 240 euros, you also have a complete set that is also well suited for larger aquariums. Here you can supply pools with up to 400 liters very well with Co2. We found it particularly good that a 2 kg reusable compressed gas bottle with Co2 is included. This can be refilled very easily and cheaply at the local CO2 dealer. In addition, every pet shop can refill the bottle. You save a lot compared to the 500g bottles. Of course, the pressure reducer system is also included, which also enables fine adjustment and also the CO2 diffusers. There is also a Co2 endurance test made of glass (OrinocoGlass Dropchecker) and an OrinocoGlass glass diffuser.
The only disadvantage we could find is the rather short transparent hose of 2 meters. The manufacturer could have added a little more here.
However, it is positive that all components are made of glass and can therefore be cleaned very well.
Customers who have bought this set so far are extremely satisfied with it.
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JBL reusable complete set ProFlora m with PH controller
Anyone who is thinking about buying a complete set with a PH controller should take a closer look at the JBL reusable ProFlora m complete set with PH controller, because this is available for just 280 euros and you have the electronic control of the CO2 content with you. In addition, there is talk of a range and use of up to a 600 liter aquarium, with these values certainly depending heavily on the dependent needs of the plants.
Let's get to the contents of the set. The JBL system ProFlora m602 is included, which you can also buy separately without the controller. All the components required to operate the system are also included. Unfortunately, there is only a 2 meter hose here and what we also didn't like is the rather small 500g bottle. A 2 kg bottle should have been included here, especially if the set is advertised for aquariums with a capacity of up to 600 liters. Here you will not get far with a bottle of just 500 grams.
Also included are the bubble counter and a diffuser in a spiral shape, which can also be extended by extensions. This means that the bubbles are better dissolved in the water because the way up is longer.
Certainly the highlight here is the existing PH controller. It offers the possibility to control the solenoid valve of the Co2 system depending on the PH value. If you take this feature into consideration, then the price-performance ratio is also right.
- CO2 - fertilizer system for the optimal supply of fast and slow growing plants in freshwater aquariums from 100 - 600 l
- Convenient and efficient: refillable 500 g reusable bottle. Easy assembly, no separate water pump required. Convertible to disposable system
- Professional water care, automatic control: Precise dosing with pressure reducer. Even outflow. Effective distribution through expandable diffuser. Best control: bubble counter with magnifying glass, CO2/pH test. Residual pressure display on the pressure gauge
- Storage bottle TÜV-tested, pressure bottle with overpressure protection. No tipping over of the bottle thanks to the base. No slipping of the hose through hose screw connections, non-return valve prevents water from entering the bottle
- Scope of delivery: 1x JBl CO2 plant fertilizer system ProFlora m602, 63021 incl. 500 g reusable CO2 bottle, fitting, stand, pressure reducer, pH control unit, reactor, bubble counter, 2 m hose, non-return valve, KH test
Dupla CO2 Set Complete 250
Let's now come to a product in our imagination from Dupla because the Dupla CO2 Set Complete 250 for around 190 euros is also impressive. This set comes in two sizes. On the one hand for up to 250 liters and then with up to 500 liters. With the 500 liter set, however, you have to dig a little deeper into your pocket, because around 260 euros are due here. Everything you need is also included here. Be it the compressed gas tank of 500g and also all necessary components such as pressure reducer and also diffuser and endurance test. Unfortunately, both sets rely on the small bottle of 500g. Here you will usually have to change the bottle quite quickly and buy one with 2kg. But we found it good that Drupal also offers a PH controller, which is tailored to the set. But you have to buy this for around 160 euros extra. A twin controller is also offered. In addition to the PH measurement, this also has an integrated temperature measurement. Thus, both values are recorded electronically. Various CO2 reactors are also available from Drupal.
- Complete professional CO2 fertilizer system for lush and healthy plant growth
- Consisting of CO2 Set 250 including 500 g CO2 depot.
- Matched to aquariums up to 250 liters
- Regulates the pH value for freshwater and seawater aquariums
- External devices can also be controlled via time control. The time control can switch every second.
- A control bar for two slots with LED activity display and a temperature sensor are included in the scope of delivery
Dennerle 5692 Nano Bio Co2 injector
Especially for nano aquarium owners is the Dennerle 5692 Nano Bio Co2 injector system worth a closer look. It can be bought for just 15 euros and of course uses BIO CO2 production. This system was specially developed for aquariums with a capacity of 10 to 60 liters. Oh, here we are talking about a shelf life of the Bio Co2 supply of up to one month and around 300.000 bubbles. In order to be able to use the Dennerle 5692 Nano Bio Co2 injector optimally, a nano corner filter is required. This allows the Co2 to be fed directly into the aquarium via the jet pipe. Also included is a Co2 bubble washer to clean the Co2. Certainly a worthwhile purchase for the price. Of course you should buy the Dennerle Nano corner filter for 15 euros. Customers are extremely satisfied with the effect and the product and there are very good reviews here.
- for connection to nano corner filter or corner filter XL
- Constant CO30 supply for more than 2 days
- Produces over 300.000 CO2 bubbles
- Especially for nano aquariums from 10 - 60 liters
- With fermentation control gel for even, controlled CO2 production
- Powerful, compact internal filter for aquariums from 10 - 40 liters
- Infinitely variable water flow, filter outlet can be rotated through 90 °, including nozzle pipe
- Large surface for filter bacteria - for crystal clear and healthy water
- Perfectly suitable for NanoCube 10, 20 and 30 liters and Nano Scaper's Tank 35 liters
- Low power consumption: only 2 watts
Of course there are many more Co2 systems. Presenting all of them here would certainly go beyond the scope.
In a separate article we will go into the various CO2 reactors and diffusers and what the manufacturers have to offer and what you should pay attention to.
Finally, we would be interested to know which CO2 systems you use. Let us know, either on our Facebook page or in our forum or by email.
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