CHIHIROS - External CO2 Diffuser Inline Pipe Installation 12/16mm and 16/22mm

Quick Answer

CHIHIROS - External CO2 Diffuser Inline Pipe Installation 12/16mm and 16/22mm is a CO2 system accessory for planted aquariums and aquascaping. It is suitable for aquarium hobbyists who want a practical product matched to this listing’s variant options.

Product Overview

Use this listing to compare the available variants and choose the option that best matches your tank size, livestock, equipment compatibility or maintenance routine.

Who Is This For?

• Suitable for planted tanks that use CO2 to improve plant growth and aquascape performance.
• Choose the hose size, diffuser size or regulator accessory that matches your existing CO2 setup.

Variant Guide

Select the variant that matches your tank size, livestock, hose size, food size, bottle size or equipment model.

• large-l
• medium-m

Key Specifications

Additional Product Notes

• CHIHIROS External CO₂ Diffuser Inline – Aluminium Pipe Installation (12/16mm & 16/22mm)
• ✅ Inline External CO₂ Diffuser – Installs directly onto filter hose for a clean, equipment-free aquarium display
• ✅ 2 Size Options Available
• M: 12/16mm hose
• L: 16/22mm hose
• ✅ Improves Aquascape Aesthetics – No diffuser visible inside the tank
• ✅ Compatible with Most Canister Filters – Ideal for planted tanks and aquascaping systems
• ✅ Easy Inline Installation – Simple setup with secure hose connection
• -Material: Aluminium
• -Placement: External (inline with filter hose)

How To Use

Install with the correct hose size and check all connections for leaks. Increase CO2 gradually and monitor livestock closely, especially after setup changes.

Good To Know Before Buying

• Check the selected variant carefully before checkout, especially for size, hose diameter, capacity, food type or model compatibility.
• For livestock, medication, water-care and fertiliser products, always follow the product label and avoid overdosing.
• For equipment, compare the product size, power rating and connection size with your current aquarium setup before purchase.