Two Little Fishies CDX Carbon Dioxide Adsorption Media – 750 mL

Two Little Fishies CDX Carbon Dioxide Adsorption Media elevates and maintains aquarium pH by absorbing CO2 in the air and aquarium water. Designed for aquariums with low pH, which is common in closed buildings or other similar environments.

• Effective CO2 removal
• Naturally raises pH
• Visual exhaustion indicator

Efficient CO2 Removal

When used with a protein skimmer, CDX media effectively removes CO2, helping maintain higher pH levels.

Innovative CO2 Control

Actively prevents pH-lowering CO2 from entering the aquarium.

Visual Exhaustion Indicator

Changes color from white to violet as it depletes, making it simple to identify when replacement is needed.

Specifications

• How Much to Use: Use 750 mL for every 50-100 gallons
• Recommended Usage: Use with Two Little Fishies 150 and 550 Phosban Media Reactors or other fluidized media reactors
• Recommended Replacement Schedule: Replace when media turns from white to violet; genenrally every 6-8 weeks
• Available Sizes: 750 mL

How It Works

Install CDX in a media reactor and connect the air output to the air intake of a protein skimmer. The CDX will remove the CO2 from the air before it enters the protein skimmer. The now CO2-free air entering the protein skimmer will soak up excess CO2 dissolved in the water column.

What’s Included (i.e., what’s in the box)

1. Two Little Fishies CDX Carbon Dioxide Adsorption Media – 750 mL