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500g CO2 cartridge is used to provide carbon dioxide (CO2) to an aquarium. CO2 is essential for plant growth, and many aquarium plants will not thrive without it. The cartridge provides a steady supply of CO2, which can be regulated using a CO2 regulator like the Fluval Pressurised CO2 Kit.

5/8 Thread so can be used instead of 45g co2 Cartridges or 95g Co2 Cartridges.

All prices include VAT + Free next day delivery (Including Saturday delivery). Same day dispatch when you order before 15:00 Monday to Friday.