Ista Glass CO2 Diffuser is for dissolving carbon dioxide (CO2) into planted aquariums. Hand made from high-quality glass, this model fits in-line into...

Ista Glass CO2 Diffuser is for dissolving carbon dioxide (CO2) into planted aquariums. Hand made from high-quality glass, this model fits in-line into...

Ista Acrylic CO2 Bubble Counter is for use with CO2 plant fertilization systems on nano and small aquariums. It monitors the volume of CO2 bubbles per...

Ista Stainless Check Valve is for use on CO2 systems, stopping the back-flow of water into the other equipment. Compact sized, contains a stainless spring...

Beetle Diffuser 30 mm For aquariums 75-190 L (20-50 US gallons) Preferred pollen-style diffuser for large aquaria or high-growth aquaria Large surface...

Bubble Counter Monitor rate of CO2 injection Minimizes the visibility of CO2 equipment in the aquarium Suitable for all aquarium sizes Simple and easy...

Spiral Bubble Counting Diffuser For aquariums up to 75 L-190 L (20-50 US gallons) Large surface area of diffuser disc ideal for high volumes of CO2 gas...

Inline Diffuser 13 mm Minimizes the visibility of CO2 equipment in the aquarium Ensures maximum dissolution of CO2 in aquarium water Allows for more consistent...

The 17 mm glass Inline Diffuser is a pollen style inline CO2 diffuser that is placed in the outflow line of the filter or aquarium pump to efficiently...

The pH checker is a glass pH monitor that comes with pH sensitive indicator solution. When submerged in water, this indicator solution changes color according...

Slanted Diffuser For aquariums up to 75 L (20 US gallons) Low profile design excellent for minimizing the visibility of the diffuser Simple and easy to...

Replacement diffuser disc for Superfish stainless steel diffuser. 20mm to fit 25cm diffuser

Superfish Replacement diffuser disc for Superfish stainless steel diffuser. 31mm to fit 35cm diffuser

Superfish Professional stainless steel CO Diffuser, perfect for Aquascaping. Length 25 cm, the diffuser should be placed as deep as possible in the aquarium....

Superfish Professional stainless steel CO Diffuser, perfect for Aquascaping. Length 35 cm, the diffuser should be placed as deep as possible in the aquarium....

CO2 is the most important nutrient for plants. Without a CO2 supply, the plants will not thrive. CO2 System Bio is a simple solution that adds extra CO2...