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  • Home
  • CO2 & Plant Care
  • CO2 Injection

CO2 Injection

Elevate your freshwater aquarium's plant growth with a CO2 system. From reliable regulators to efficient diffusers, our selection of products provides essential tools for maintaining optimal CO2 levels and fostering a lush, thriving aquatic plant environment.
  • CO2 Regulators CO2 Regulators
  • CO2 Cylinders CO2 Cylinders
  • Drop Checkers & pH Monitoring Drop Checkers & pH Monitoring
  • Bubble Counters & Diffusers Bubble Counters & Diffusers
  • CO2 Tubing & Valves CO2 Tubing & Valves
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74 Items

  1. Pro Dual Stage CO2 Regulator
    Ultum Nature Systems
    Pro Dual Stage CO2 Regulator
    $219.99 $219.99

  2. PRO-SE Series Dual Stage CO2 Regulator
    CO2Art
    PRO-SE Series Dual Stage CO2 Regulator
    $149.99 $149.99

  3. Pro-Elite Series V2 Dual Stage CO2 Regulator
    CO2Art
    Pro-Elite Series V2 Dual Stage CO2 Regulator
    $269.99 $269.99

  4. CO2 Tank - 5 lbs.
    Rating:
    93%
    8 Reviews
    Bulk Reef Supply
    CO2 Tank - 5 lbs.
    $89.99 $89.99

  5. Fluval CO2 Indicator Set
    Fluval
    Fluval CO2 Indicator Set
    $17.99 $17.99

  6. Bio-CO2 Pro (up to 33 gallons)
    Rating:
    60%
    1 Review
    Fluval
    Bio-CO2 Pro (up to 33 gallons)
    $139.99 $139.99

  7. Bio-CO2 Pro (up to 66 gallons)
    Fluval
    Bio-CO2 Pro (up to 66 gallons)
    $174.99 $174.99

  8. Bio-CO2 Pro (up to 132 gallons)
    Fluval
    Bio-CO2 Pro (up to 132 gallons)
    $349.99 $349.99

  9. Neo CO2 DIY CO2 Kit
    AQUARIO
    Neo CO2 DIY CO2 Kit
    $29.99 $29.99

  10. CO2 Supply Set w/ 45g Cartridge
    ISTA
    CO2 Supply Set w/ 45g Cartridge
    $39.99 $39.99

  11. ISTA Disposable CO2 Cartridge (45g)
    ISTA
    ISTA Disposable CO2 Cartridge (45g)
    $13.39 $13.39

  12. CO2 Diffuser
    Twinstar
    CO2 Diffuser
    From: $6.99

    Choose Options Notify Me When In-Stock
  13. Pro CO2 Manifold Block
    Ultum Nature Systems
    Pro CO2 Manifold Block
    $34.99 $34.99

  14. Pro Mini Dual Stage CO2 Regulator
    Ultum Nature Systems
    Pro Mini Dual Stage CO2 Regulator
    $157.99 $157.99

  15. CO2 Cylinder Pro - 2.5 lbs
    Ultum Nature Systems
    CO2 Cylinder Pro - 2.5 lbs
    $84.99 $84.99

  16. CO2 Paintball Cylinder
    Ultum Nature Systems
    CO2 Paintball Cylinder
    From: $34.99

    Choose Options Notify Me When In-Stock
  17. Manifold Block for CO2Art Pro-Elite Series V2 CO2 Regulator
    CO2Art
    Manifold Block for CO2Art Pro-Elite Series V2 CO2 Regulator
    $49.99 $49.99

  18. CO2 Regulator 7077.3
    Rating:
    60%
    3 Reviews
    Tunze
    CO2 Regulator 7077.3
    $149.99 $149.99

  19. CO2 Starter Set
    ISTA
    CO2 Starter Set
    $15.19 $15.19

  20. 1L CO2 Supply Set
    ISTA
    1L CO2 Supply Set
    $259.99 $259.99

  21. Aluminum CO2 Cylinder (1.5 lbs)
    ISTA
    Aluminum CO2 Cylinder (1.5 lbs)
    $119.99 $119.99

  22. Max Mix CO2 Reactor
    ISTA
    Max Mix CO2 Reactor
    $21.19 $21.19

  23. Neo CO2 Refill
    AQUARIO
    Neo CO2 Refill
    $19.99 $19.99

  24. Extended CO2 Diffuser
    AQUARIO
    Extended CO2 Diffuser
    From: $15.99

    Choose Options Notify Me When In-Stock
  25. Original CO2 Diffuser
    AQUARIO
    Original CO2 Diffuser
    From: $12.99

    Choose Options Notify Me When In-Stock
  26. Bio-CO2 Pro Refill Pack
    Fluval
    Bio-CO2 Pro Refill Pack
    $12.99 $12.99

  27. CarbonDoser Electronic CO2 Regulator V2.0
    Rating:
    93%
    3 Reviews
    CarbonDoser
    CarbonDoser Electronic CO2 Regulator V2.0
    $449.99 $449.99

  28. CO2 Drop Checker Kit
    CO2Art
    CO2 Drop Checker Kit
    $18.99 $18.99

  29. Aquarium CO2 Drop Checker Solution (15ml)
    CO2Art
    Aquarium CO2 Drop Checker Solution (15ml)
    $7.99 $7.99

  30. CarbonDoser Precision Check Valve
    CarbonDoser
    CarbonDoser Precision Check Valve
    $29.99 $29.99

  31. Pro-Series Precision CO2 Check Valve
    CO2Art
    Pro-Series Precision CO2 Check Valve
    $12.99 $12.99

  32. IO In-Tank CO2 Diffuser - Acrylic Series
    CO2Art
    IO In-Tank CO2 Diffuser - Acrylic Series
    From: $19.99

    Choose Options Notify Me When In-Stock
  33. In-Tank Flux CO2 Diffuser
    CO2Art
    In-Tank Flux CO2 Diffuser
    From: $28.99

    Choose Options Notify Me When In-Stock
  34. Inline CO2 Diffuser
    CO2Art
    Inline CO2 Diffuser
    From: $39.99

    Choose Options Notify Me When In-Stock
  35. Stainless Steel U-Bend Tubing Connector
    CO2Art
    Stainless Steel U-Bend Tubing Connector
    From: $9.99

    Choose Options Notify Me When In-Stock
  36. Clear CO2 Resistant Polyurethane Tubing
    CO2Art
    Clear CO2 Resistant Polyurethane Tubing
    From: $6.99

    Choose Options Notify Me When In-Stock
  37. Black CO2 Resistant Polyurethane Tubing
    CO2Art
    Black CO2 Resistant Polyurethane Tubing
    From: $6.99

    Choose Options Notify Me When In-Stock
  38. Silver CO2 Resistant Polyurethane Tubing
    CO2Art
    Silver CO2 Resistant Polyurethane Tubing
    From: $6.99

    Choose Options Notify Me When In-Stock
  39. Green CO2 Resistant Polyurethane Tubing
    CO2Art
    Green CO2 Resistant Polyurethane Tubing
    From: $6.99

    Choose Options Notify Me When In-Stock
  40. Blue CO2 Resistant Polyurethane Tubing
    CO2Art
    Blue CO2 Resistant Polyurethane Tubing
    From: $6.99

    Choose Options Notify Me When In-Stock
  41. Pro-Series CO2 Adapter
    CO2Art
    Pro-Series CO2 Adapter
    From: $28.99

    Choose Options Notify Me When In-Stock
  42. Neo P Clips
    AQUARIO
    Neo P Clips
    From: $9.99

    Choose Options Notify Me When In-Stock
  43. Neo U Clips
    AQUARIO
    Neo U Clips
    From: $6.99

    Choose Options Notify Me When In-Stock
  44. Glass U Tube for Airline Tubing
    Seachem
    Glass U Tube for Airline Tubing
    From: $6.31

    Choose Options Notify Me When In-Stock
  45. Replacement Ceramic Membrane for CO2Art Inline Diffuser
    CO2Art
    Replacement Ceramic Membrane for CO2Art Inline Diffuser
    From: $16.99

    Choose Options Notify Me When In-Stock
  46. Suction Cups for 4/6mm Tubing (8 Pack)
    CO2Art
    Suction Cups for 4/6mm Tubing (8 Pack)
    $6.99 $6.99

  47. IO Diffuser Replacement Ceramic Membrane
    CO2Art
    IO Diffuser Replacement Ceramic Membrane
    From: $11.99

    Choose Options Notify Me When In-Stock
  48. CO2Art 12V DC Power Adapter Replacement
    CO2Art
    CO2Art 12V DC Power Adapter Replacement
    $24.99 $24.99

  49. Pro-Series 12V DC Solenoid Coil Replacement
    CO2Art
    Pro-Series 12V DC Solenoid Coil Replacement
    $15.99 $15.99

  50. Pro-Series Adapter Repair Kit (SodaStream & Paintball)
    CO2Art
    Pro-Series Adapter Repair Kit (SodaStream & Paintball)
    $6.99 $6.99

  51. Replacement Washers for CO2Art Pro-Series Regulators
    CO2Art
    Replacement Washers for CO2Art Pro-Series Regulators
    $7.99 $7.99

  52. Replacement Washers for CO2Art SodaStream & Paintball Adapter
    CO2Art
    Replacement Washers for CO2Art SodaStream & Paintball Adapter
    $5.99 $5.99

  53. CO2 Paintball Cylinder - 16 Oz
    Ultum Nature Systems
    CO2 Paintball Cylinder - 16 Oz
    $34.99 $49.99

  54. pH Checker for Planted Aquariums
    Seachem
    pH Checker for Planted Aquariums
    $9.47 $9.47

  55. Beetle CO2 Diffuser
    Seachem
    Beetle CO2 Diffuser
    From: $18.13

    Choose Options Notify Me When In-Stock
  56. Slanted CO2 Diffuser
    Seachem
    Slanted CO2 Diffuser
    $18.13 $18.13

  57. Bubble Counting CO2 Diffuser
    Seachem
    Bubble Counting CO2 Diffuser
    $18.13 $18.13

  58. Spiral Bubble Counting CO2 Diffuser
    Seachem
    Spiral Bubble Counting CO2 Diffuser
    $18.13 $18.13

  59. Glass Bubble Counter
    Seachem
    Glass Bubble Counter
    $8.19 $8.19

  60. Glass Inline CO2 Diffuser
    Seachem
    Glass Inline CO2 Diffuser
    From: $59.16

    Choose Options Notify Me When In-Stock
  61. Water Plant CO2 Tablets (100 count)
    ISTA
    Water Plant CO2 Tablets (100 count)
    $14.19 $14.19

  62. Mini Inline CO2 Bubble Counter
    ISTA
    Mini Inline CO2 Bubble Counter
    $5.49 $5.49

  63. 2 in 1 CO2 Bubble Counter & Check Valve
    ISTA
    2 in 1 CO2 Bubble Counter & Check Valve
    $8.79 $8.79

  64. 3 in 1 CO2 Diffuser
    ISTA
    3 in 1 CO2 Diffuser
    From: $16.49

    Choose Options Notify Me When In-Stock
  65. Mini Ceramic CO2 Diffuser
    ISTA
    Mini Ceramic CO2 Diffuser
    $13.69 $13.69

  66. Replacement Ceramic for ISTA CO2 Diffusers
    ISTA
    Replacement Ceramic for ISTA CO2 Diffusers
    From: $6.69

    Choose Options Notify Me When In-Stock
  67. UFO CO2 Diffuser
    ISTA
    UFO CO2 Diffuser
    $16.49 $16.49

  68. CO2 Indicator
    ISTA
    CO2 Indicator
    $13.39 $13.39

  69. CO2 Indicator Solution
    ISTA
    CO2 Indicator Solution
    $6.39 $6.39

  70. ISTA 1.5lbs CO2 Cylinder Base
    ISTA
    ISTA 1.5lbs CO2 Cylinder Base
    $8.69 $8.69

  71. Spring Check Valve
    ISTA
    Spring Check Valve
    $4.09 $4.09

  72. Neo Mixer
    AQUARIO
    Neo Mixer
    From: $28.99

    Choose Options Notify Me When In-Stock
  73. Manifold Block for PRO-Elite Series CO2 Regulator
    CO2Art
    Manifold Block for PRO-Elite Series CO2 Regulator
    $34.99 $49.99

  74. pH Checker Refill Solution
    Seachem
    pH Checker Refill Solution
    $3.61 $3.61

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