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Aquarium Plants
Fertiliser & CO2
Substrate
Hardscape
Tools
More
- Accessories
  
  Breeding
  Cleaning
  Feeding Tools
  Nets & Traps
- Aquarium Filtration
  
  Aquarium Filters
  Filter Cartridges
  Filter Media
- Aquarium Heating
- Aquarium Lighting
- Aquarium Pumps
- Aquariums
  
  Aquariums
  Stands & Cabinets
- Botanicals
- Cleaning
- Decoration
- Feeding Tools
- Fish Food
- Glassware
- Stainless Steel
- Tubing & Hoses
  
  4/6mm Tubing & Accessories
  9/12mm Tubing & Accessories
  12/16mm Tubing & Accessorie
  16/22mm Tubing & Accessorie
- Water Additives
- Water Testing
- Water Treatments

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Collection: CO2

CO2 is one of the main nutrients for Aquarium Plants. Here you can find a variety of pressurised and bio CO2 systems for your fish tank.

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Colombo (12 products)
Dennerle Plants (3 products)
Ista (7 products)
Tetra (2 products)
Tropica (6 products)

Colombo (12 products)
Dennerle Plants (3 products)
Ista (7 products)
Tetra (2 products)
Tropica (6 products)

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30 products

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30 products

Tropica CO2 System BIO

Tropica CO2 System BIO

Regular price £19.50

Regular price Sale price £19.50
Unit price per
Colombo CO2 Reactor REFILL

Colombo CO2 Reactor REFILL

Regular price From £8.99

Regular price Sale price From £8.99
Unit price per
Tropica CO2 System BIO Refill

Tropica CO2 System BIO Refill

Regular price £10.50

Regular price Sale price £10.50
Unit price per
Colombo CO2 Kit Basic

Colombo CO2 Kit Basic

Regular price £12.99

Regular price Sale price £12.99
Unit price per
Tropica CO2 Diffuser 3-in-1

Tropica CO2 Diffuser 3-in-1

Regular price £9.99

Regular price Sale price £9.99
Unit price per
Dennerle Plants CO2 Diffuser

Dennerle Plants CO2 Diffuser

Regular price £8.39

Regular price Sale price £8.39
Unit price per
Colombo CO2 Indicator

Colombo CO2 Indicator

Regular price £14.49

Regular price Sale price £14.49
Unit price per
Dennerle Plants CO2 Starter Refill

Dennerle Plants CO2 Starter Refill

Regular price £8.39

Regular price ~~£8.39~~ Sale price £8.39
Unit price per
Colombo CO2 Adaptor Ring

Colombo CO2 Adaptor Ring

Regular price £12.99

Regular price Sale price £12.99
Unit price per
Colombo CO2 Advance Refill Bottle 95g

Colombo CO2 Advance Refill Bottle 95g

Regular price £19.99

Regular price Sale price £19.99
Unit price per
Colombo CO2 Basic REFILL

Colombo CO2 Basic REFILL

Regular price £5.49

Regular price Sale price £5.49
Unit price per
Tropica Ceramic Disc for 3-in-1 Diffuser

Tropica Ceramic Disc for 3-in-1 Diffuser

Regular price £4.99

Regular price Sale price £4.99
Unit price per
Colombo CO2 Solenoid Valve

Colombo CO2 Solenoid Valve

Regular price £54.99

Regular price Sale price £54.99
Unit price per
Colombo CO2 Kit Advance System

Colombo CO2 Kit Advance System

Regular price £119.99

Regular price Sale price £119.99
Unit price per
Colombo CO2 Profi Set M10

Colombo CO2 Profi Set M10

Regular price £175.99

Regular price Sale price £175.99
Unit price per
Tetra Optimat CO2 Kit

Tetra Optimat CO2 Kit

Regular price £15.99

Regular price Sale price £15.99
Unit price per
Colombo CO2 Profi Regulator (M10)

Colombo CO2 Profi Regulator (M10)

Regular price £84.99

Regular price Sale price £84.99
Unit price per
Ista Intense Flow CO2 Bubble Counter

Ista Intense Flow CO2 Bubble Counter

Regular price £5.19

Regular price Sale price £5.19
Unit price per
Ista 2-in-1 CO2 Bubble Counter & Check Valve

Ista 2-in-1 CO2 Bubble Counter & Check Valve

Regular price £4.99

Regular price Sale price £4.99
Unit price per
Ista Mini CO2 Bubble Counter

Ista Mini CO2 Bubble Counter

Regular price £3.59

Regular price Sale price £3.59
Unit price per
Ista CO2 Bubble Counter

Ista CO2 Bubble Counter

Regular price £4.49

Regular price Sale price £4.49
Unit price per
Ista CO2 Refill Bottles 95g

Ista CO2 Refill Bottles 95g

Regular price From £12.99

Regular price Sale price From £12.99
Unit price per
Ista CO2 Supply Set Advance 95g

Ista CO2 Supply Set Advance 95g

Regular price £69.99

Regular price Sale price £69.99
Unit price per
Colombo CO2 Cylinder Bottle M10

Sold out

Colombo CO2 Cylinder Bottle M10

Regular price From £46.99

Regular price Sale price From £46.99
Unit price per

Sold out

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