Colombo CO2 Reactor Kit, Refill, Drop Checker + Fertilisers

  • Stock: 44 units in stock
  • Model: ReactorSet+
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This complete set will turbocharge your plant growth and consists of:

  1. CO2 Reactor
  2. Reactor Refills
  3. Drop Checker
  4. Fertilisers

Please see the details below for more information on this great deal.

Kit Components
1 XColombo CO2 reactor RefillColombo CO2 reactor Refill

2 components for the Colombo CO2 reactor.

Package contains 3 sets of component A and B, 200 grams each.

With 1 set, approx. 105 grams of CO2 can be made.

1 package is therefore sufficient to make approx. 315 grams of CO2.

1 XColombo CO2 IndicatorColombo CO2 Indicator

CO2 indicator which measures CO2 levels in your planted aquarium.

If you never test, how do you know? Making sure you have good CO2 levels is so important in a planted aquarium, it cannot be stressed more. Quite often hobbyists guess or assume it's OK when the realisty is that it rarely is. This drop checkers lets you know what your CO2 levels are all of the time giving you peace of mind.


  • Easy to read
  • Stylish design
  • Contains enough indicator for 2 years
  • Contains free clear suction cup
  • Very simple set up (takes seconds)

The drop checker is a relatively new invention and previously test kits were used. However, they only measured the levels at the time of the test where as the drop checkers measure it 24/7.

It's amazing the difference the way your plant will respond when you have the correct CO2 levels and this Colombo CO2 Drop Checker will be one of those tools that you won't believe you lived without for your tank.

An absolute must for any planted aquarium tank.

1 XColombo CO2 Reactor Set 2.3LColombo CO2 Reactor Set 2.3L

This CO2 Reactor Set not only looks super cool but it also functions perfectly and creates pure CO2 from a chemical reaction. After this chemical reaction has taken place in the cylinder the CO2 gas is slowly and constantly released through a pressure regulator. The gas flow can be precisely adjusted with the adjustment knob and integrated bubble counter. The gas flow can be stopped at night with the solenoid which is included with the set and if you connect the solenoid to a domestic timer, you'll have your CO2 coming on and off when your lights are on and off making the gas more economical.

The CO2 Refills are available separately along with the Colombo Drop Checker (recommended) which allows you to monitor your CO2 levels visually.

So it really does tick all the boxes. Looks good, works as expected and fun to make your own CO2 in the comfort of your own home.

So if you are thinking about using pressurised CO2 in your aquarium which will really turbo-boost your plant growth, consider the Colombo CO2 Reactor Kit today. It's a lovely piece of kit, will look stylish in your cabinet and creating your own pure CO2 is both easy and educational.

The bottle is made of stainless steel 314. Supplied with:

  • Bottle holder
  • pressure regulator
  • solenoid valve
  • bubble counter
  • non-return valve
  • outflow
  • accessories and spare parts.

Note: The 2 components to create your carbon dioxide are not included with this set and need to be purchased separately - click here to see them.

You'll also need a euro plug to UK plug adaptor for your solenoid.

1 XNeutro Combo - Low Tech (Small)Neutro Combo - Low Tech (Small)

Neutro Combo - Low Tech is an ALL IN ONE kit for the Low Tech (non CO2) aquarium. You make a little saving too!!

Neutro T is a liquid aquarium plant fertiliser which provides all the necessary trace elements including iron for your low tech planted aquarium. Low tech means aquariums which are not using pressurised CO2.  The ingredients in Neutro T are special. They work quickly and effectively when dosed as recommended. Your plants will show the benefits of this product and reward you in no time.

Dosage: This product needs to be dosed daily so that your plants have a steady stream of nutrients. There's little point in dumping a weeks worth of fertilisers in one go. Simply add 5ml per 100L every day. It doesn't matter what time of the day you dose, as long as it's every 24 hours.

If you are using CO2, then you need to dose Neutro+ which contains trace elements and macro nutrients (it's an all in one solution). So Neutro T for low tech planted aquariums and Neutro+ for high tech planted aquariums.

However regardless of what type of planted aquarium you have, we recommend using Neutro CO2 which is a liquid carbon supplement (see related products for more information).

Bottle sizes: Small = 500ml

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 not as potent as the gas but is 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.

In addition to this, if you over dose Neutro CO2, it can have a negative effect on algae (helps reduce it). However you need to take care when overdosing, and increase it slowly. Perhaps 25% extra, then monitor the results. We do not recommend more than double dose.

It is also 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.

DIRECTIONS: Add 5ml per 250L 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

£171.96 £159.99
Save: 7% off
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