Bio-CO2 Pro

The Bio-CO2 Pro system combines the safety of biological carbon dioxide production with the convenience of pressurized delivery.

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Convenient CO2 delivery in 4 easy steps – only 10 minutes per month to maintain

Safe low-pressure process involving sustainable materials

Recharging convenience with no high-pressure cylinders to refill

Convenient CO2 delivery in 4 easy steps – only 10 minutes per month to maintain

Safe low-pressure process involving sustainable materials

Recharging convenience with no high-pressure cylinders to refill

Available Models

Bio-CO2 Pro Low-Pressure System

33 US Gal / 125 L

Bio-CO2 Pro Low-Pressure System

66 US Gal / 250 L

Bio-CO2 Pro Low-Pressure System

132 US Gal / 500 L

Bio-CO2 Pro System

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Convenient

Bio-CO2 Pro involves a simple 4-step biological process for carbon dioxide production and requires less than 10 minutes per month to maintain.

Safe

Low-pressure operation (1.3 bar / 19 psi max.) vs. traditional pressurized systems (55-80 bar / 800-1100 psi)

• Integrated pressure release valve

Effective

Top quality steel construction

• 100% silicone gasket prevents CO2 escape

• Adjustable bubble counter with precision regulator and nano bubble diffuser for accurate CO2 delivery

Long Lasting

Each Fluval Bio-CO2 Pro model generates up to 30 DAYS of reliable CO2 production

Sustainable

Sugar and yeast are renewable and environmentally-friendly raw materials with high sustainability

What Makes Bio-CO2 Pro Better?

Bio-CO2 ProConventional Pressurized CO2Liquid CO2Conventional Biological CO2
FormatHigh quality stainless steel canisterPressurized cylinderLiquid bottleGeneric plastic bottle
Dosing ConvenienceYes
Long lasting (up to 30 days of CO2)
YesNO
Requires daily dosing
No
Lacks adjustable valve
Recharging ConvenienceYesNoN/AYes
ReliabilityEXCELLENT
Pre-measured dry components
VERY GOOD
Potential for CO2 leaks
GOOD
Inherent risk as it’s a Chemical compound
VERY GOOD
Dry components mixed as needed
SafetyLOW-PRESSURE
system with release valve
1.3 bar / 19 psi max.
Caution
Contents under HIGH-PRESSURE
55-80 bar / 800-1100 psi
Relies on consumer dosing accurately (many variables to account for)Low-pressure system, but no pressure release
Adjustable Bubble ControlYesYesN/ANo
CO2 Level Test CompatibleYesYesNoYes

FLUVAL Bio-CO₂ Pro

Format
High quality stainless steel canister

Dosing Convenience
Yes
Long lasting (up to 30 days of CO₂)

Recharging Convenience
Yes

Reliability
EXCELLENT
Pre-measured dry components

Safety
LOW-PRESSURE
system with release valve
1.3 bar / 19 psi max.

Adjustable Bubble Control
Yes

CO₂ Level Test Compatible
Yes

Conventional Pressurized CO₂

Format
Pressurized cylinder

Dosing Convenience
Yes

Recharging Convenience
No

Reliability
VERY GOOD
Potential for CO₂ leaks

Safety
Caution
Contents under HIGH-PRESSURE
55-80 bar / 800-1100 psi

Adjustable Bubble Control
Yes

CO₂ Level Test Compatible
Yes

Liquid CO₂

Format
Liquid bottle

Dosing Convenience
NO
Requires daily dosing

Recharging Convenience
N/A

Reliability
GOOD
Inherent risk as it’s a Chemical compound

Safety
Relies on consumer dosing accurately (many variables to account for)

Adjustable Bubble Control
N/A

CO₂ Level Test Compatible
No

Conventional Biological CO₂

Format
Generic plastic bottle

Dosing Convenience
No
Lacks adjustable valve

Recharging Convenience
Yes

Reliability
VERY GOOD
Dry components mixed as needed

Safety
Low-pressure system, but no pressure release

Adjustable Bubble Control
No

CO₂ Level Test Compatible
Yes

What’s Included

Bubble Counter

Adjustable with precision regulator.

Nano Bubble Diffuser

Durable acrylic with
high-quality ceramic disc.

Inline Check Valve

Prevents water backflow
from aquarium.

CO2 Airline

With gas barrier to prevent
CO2 escape (5 ft / 1.5 m).

Pressure Release Valve

Offers additional security and peace of mind.

Reaction Chamber

Top-quality stainless steel with 100% silicone gasket seal ensures effective CO2 delivery.

Sure-Lock Cover

Secure clamping cover.

Solenoid Valve

Low-voltage (12V) valve and power
supply for optional overnight shut-off. Pair with a timer for automatic functionality (sold separately).

Activator & Booster

Up to 30 day supply included.

CO2 Specifications

Model 125Model 250Model 500
Ideal Bubble Count12 Bubbles/min.24 Bubbles/min.48 Bubbles/min.
CO2 Output (Monthly)90 g / 46 L180 g / 92 L450 g / 229 L
Activator Sachets / Booster Tablets Required (Monthly)1 of each2 of each4 of each

Model 125

Ideal Bubble Count
12 Bubbles/min.

CO₂ Output (Monthly)
90 g / 46 L

Activator Sachets / Booster Tablets Required (Monthly)
1 of each

Model 250

Ideal Bubble Count
24 Bubbles/min.

CO₂ Output (Monthly)
180 g / 92 L

Activator Sachets / Booster Tablets Required (Monthly)
2 of each

Model 500

Ideal Bubble Count
48 Bubbles/min.

CO₂ Output (Monthly)
450 g / 229 L

Activator Sachets / Booster Tablets Required (Monthly)
4 of each

Compare Models & Specs

Bio-CO2 Pro Low-Pressure System

33 US Gal / 125 L

  • Item #

    A8460

  • UPC

    015561184601

  • Aquarium Capacity

    33 US Gal / 125 L

  • Total Chamber Volume

    0.25 US Gal / 1 L

Bio-CO2 Pro Low-Pressure System

66 US Gal / 250 L

  • Item #

    A8463

  • UPC

    015561184632

  • Aquarium Capacity

    66 US Gal / 250 L

  • Total Chamber Volume

    0.5 US Gal / 2 L

Bio-CO2 Pro Low-Pressure System

132 US Gal / 500 L

  • Item #

    A8466

  • UPC

    015561184663

  • Aquarium Capacity

    132 US Gal / 500 L

  • Total Chamber Volume

    1.32 US Gal / 5 L

  • Power Consumption

    AC 110-240V / DC 12V (Solenoid Valve: 1.2W / DC 12V)

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